Amber Hats could be a solid, evocative alternative that stays remarkably true to the Radagast influence while adding a fresh, layered dimension—especially with your nod to its tech history.

Why Amber Fits the Radagast Vibe

Radagast the Brown is deeply tied to the natural world: fossilized tree resin (amber itself is ancient conifer sap preserved over millions of years), earth tones, warmth from sunlight filtering through forests, and a sense of timeless, nurturing preservation. Amber's core symbolism aligns beautifully:

• It's a warm, golden-to-orange-brown hue derived from fossilized tree resin—literally "earth's memory" of ancient forests, echoing Radagast's mastery over nature, herbs, beasts, and subtle changes in the living world.
• Symbolically, amber represents vitality, confidence, grounding/stability, connection to nature, renewal, and positive energy (e.g., golden amber for happiness/clarity, green-tinged for growth/harmony). It's often linked to the sun, magic, and spirituality in ancient cultures—think "congealed sunlight" or protective talismans—without being flashy like red or stark like white.
• The color promotes warmth, safety, and an earthy embrace: understated yet radiant, much like Radagast's gentle, life-affirming approach over confrontation.

This keeps the "earth tone" essence of brown but shifts to a warmer, more luminous variant—perfect for "paving the path of good with the least resistance" through creative, community-empowering software.

The Retro Tech Connection You Mentioned

You're spot-on about amber's role in early computing: Many monochrome CRT monitors from the 1980s (especially business/dumb terminals) used amber phosphors (P3 type, often zinc beryllium silicate with manganese) for glowing amber-on-black text.

• Amber was chosen partly because it was considered more ergonomic—easier on the eyes than stark green (P1 phosphor) for long sessions, with better persistence and reduced strain (similar to modern blue-light filters tinting screens warmer).
• Green dominated IBM PCs and some home computers, but amber was popular in terminals and later models for its softer, warmer glow.
• No direct "sulfur" link in the phosphors (common ones were zinc sulfide for green, but amber used different compounds), but the warm yellow-orange glow might evoke sulfurous flames or sunlight—though the real tie is the phosphor tech, not elemental sulfur.

This retro computing heritage adds a clever meta-layer for a software/dev collective: "Amber Hats" subtly nods to foundational hacker-era displays (think glowing terminals where early open-source and community tools were born), while staying grounded in nature. It differentiates from black/white/gray hats without clashing—amber isn't a standard "hacker hat" color, so it's fresh territory.

Potential Associations and Drawbacks

From searches, "Amber Hats" has almost no negative baggage:

• Mostly neutral or positive: Some boutique hat shops (e.g., amber.hats on Instagram for jewelry/hats), fan debates (e.g., cartoon characters' hair/hat), or unrelated slang (amber as tobacco juice in old US contexts—very niche and outdated).
• No derogatory slang, political ties, or major conflicts like "brown" sometimes carries.
• In gemstone/crystal communities, amber hats/jewelry appear symbolically for protection, positivity, and nature connection—bonus alignment.

Quick Fit Comparison to Other Options

• Vs. Brown: More unique, warmer, nature-resin direct tie; dodges any fringe slang.
• Vs. Umber/Sienna/Ochre: Amber feels more luminous and tech-resonant while staying earthy.
• Overall: High fidelity to Radagast (forest resin, sun-warmed earth, gentle glow), plus a subtle hacker-history wink.

If you go with Amber Hats, it could brand beautifully—logo with a stylized wide-brimmed hat in glowing amber tones, tagline tying "ancient resin preserving life" to "tools preserving and proliferating good." It evokes quiet illumination: light through amber, enabling growth without harsh glare.

Other ideas to tones / colors:

To stay true to the Radagast the Brown influence—his earthy, nature-connected essence, gentle nurturing approach, mastery of "shapes and changes of hue," affinity for beasts and herbs, and overall grounded, humble vibe—here are some alternative color-based names for your collective. These draw from earth tones, natural pigments, and subtle variations on brown that evoke soil, forests, autumn leaves, aged wood, or clay, while avoiding direct conflict with established hacker-hat colors (like black/white/gray/red).

I've prioritized names that feel organic and understated, much like Radagast's "earthen-brown" robes and his subtle, life-affirming role.

Strong Alternatives Rooted in Earth Tones

• Umber Hats
  Umber is a deep, warm brown (often raw umber or burnt umber) derived from natural earth pigments like iron oxide-rich clay. It has a richer, more "fertile soil" feel than plain brown—perfect for Radagast's connection to the land and growth. It sounds sophisticated yet grounded.

• Sienna Hats
  Sienna (or burnt sienna) is a reddish-brown earth tone from Tuscan clay, evoking sun-baked soil and autumnal warmth. It's vibrant yet natural, aligning with Radagast's "changes of hue" and his herbal/forest mastery. Less common than brown, so fewer associations.

• Ochre Hats
  Ochre is a golden-yellowish to reddish-brown natural pigment from iron-rich earth, used in ancient cave art and rituals. It captures the ancient, elemental, nurturing spirit of Radagast—think fertile ground and subtle illumination—while staying firmly in earth tones.

• Taupe Hats
  Taupe is a soft, grayish-brown (mole-like) tone that's muted and versatile. It's understated and "earthy neutral," mirroring Radagast's humble, non-confrontational style. It feels modern and approachable for a tech/community-focused group.

• Fawn Hats
  Fawn refers to the light, warm brown of a young deer's coat—gentle, natural, and tied directly to wildlife. This leans into Radagast's animal friendships and bird affinity, emphasizing grace and protection of the vulnerable.

• Cedar Hats
  Cedar brown evokes aged wood, forest resilience, and earthy depth. It ties to trees/herbs (Radagast's domain) and suggests enduring, quiet strength—ideal for building tools that last.

• Moss Hats (or Moss-Brown Hats)
  While moss is green-leaning, mossy browns (deep, damp forest floor tones) blend earth and subtle green. This could nod to Radagast's "master of shapes and changes of hue" while staying nature-rooted.

More Mythic or Tolkien-Inspired Twists

• Aiwendil Hats (using his Quenya name meaning "bird-friend") — not color-based, but deeply authentic to the character.
• Earthen Hats or Earth-Brown Hats — direct nod to Tolkien's description of his "earthen-brown" clothing.
• Changer Hats or Hue Hats — referencing "master of shapes and changes of hue," shifting focus to adaptability and graceful transformation rather than a single color.

Quick Comparison Table for Fit

Umber Hats or Ochre Hats are top recommendations outside of Amber—they preserve the brown/earth core while adding a layer of depth and uniqueness that honors Radagast's subtle power and natural wisdom. They also avoid most of the fringe slang or unrelated baggage "brown" sometimes carries.

If you share more about your preferred vibe (e.g., warmer vs. cooler tones, more forest-focused, or minimalist), I can refine these further or suggest logos/mottos to match!