# #91bb1b

A color — vivid. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#91bb1b`
- RGB: rgb(145, 187, 27)
- HSL: hsl(76, 75%, 42%)
- OKLCH: oklch(0.735 0.177 124.6)
- Relative luminance: 0.4164
- Nearest named color: Citrus (#9fb70a, Δ 1.877) — https://brandsweets.com/colors/citrus
- Moods: vivid
- Page: https://brandsweets.com/colors/91bb1b

## Tints & shades

- Tints (toward white): #a5d61f, #b1e12d, #bbe548, #c3e85e, #cdec79, #d7f094, #e0f3aa, #e9f7c5, #f2fadb, #fcfef6
- Shades (toward black): #83aa18, #759816, #6b8a14, #5d7811, #4f670f, #41550c, #34430a, #293608, #1c2405, #0e1203

## Harmonies

- Complementary: #461bbb
- Analogous: #bb961b, #40bb1b
- Triadic: #1b91bb, #bb1b91
- Split-complementary: #1b40bb, #961bbb
- Tetradic: #1bbb96, #461bbb, #bb1b40

## Colors that go with #91bb1b

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #91bb1b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Zendesk (https://brandsweets.com/colors/brands/zendesk-com), Disney (https://brandsweets.com/colors/brands/disney-com), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/charcoal
- **Slate Gray** #708090 [pool] — 4 real palettes, including Ledger Dark and Noir Beauty put Slate Gray beside #91bb1b, as the supporting colour. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe). — https://brandsweets.com/colors/slategray
- **Taupe** #483c32 [pool] — Taupe is paired with #91bb1b in 10 real palettes, including Acer's brand system and Citrus Grove, as the text colour against it. Seen in: Acer (https://brandsweets.com/colors/brands/acer-com), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #91bb1b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/violet
- **Cornflower Blue** #6495ed [harmony, pool: split] — Cornflower Blue is a split-complement of #91bb1b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/cornflowerblue
- **Blue** #0000ff [pool] — 3 real palettes, including Minecraft's brand system and Spotify's brand system put Blue beside #91bb1b, as the accent. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Spotify (https://brandsweets.com/colors/brands/spotify), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #91bb1b in 3 real palettes, including Undergrowth and Forest Floor, as the supporting colour. Seen in: Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove). — https://brandsweets.com/colors/darkolivegreen
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #91bb1b in 3 real palettes, including Citrus Grove and Learning App, as the lead colour. Seen in: Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Learning App (https://brandsweets.com/palettes/playful#learning-app), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/darkorange

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 2.25:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #607d12 (4.73:1); AA: background → #404040 (4.61:1); AAA: text → #485e0d (7.29:1); AAA: background → #212121 (7.15:1)
- On black (#000000): 9.33:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Acer** — primary #83b81a (Δ 1.972) — https://brandsweets.com/colors/brands/acer-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/91bb1b-b3bea2-4e6edf-232d1f-f1efe9?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#91bb1b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.