# #21ca75

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

## Values

- Hex: `#21ca75`
- RGB: rgb(33, 202, 117)
- HSL: hsl(150, 72%, 46%)
- OKLCH: oklch(0.739 0.178 154.3)
- Relative luminance: 0.4385
- Nearest named color: Emerald Green (#50c878, Δ 2.258) — https://brandsweets.com/colors/emerald-green
- Moods: vivid
- Page: https://brandsweets.com/colors/21ca75

## Tints & shades

- Tints (toward white): #28dc82, #3ee08f, #58e49e, #6ee7ab, #84ebb8, #9aefc4, #b0f2d1, #caf6e0, #e0faed, #f6fefa
- Shades (toward black): #1eb86b, #1ba761, #189154, #157f4a, #126e40, #0f5c36, #0c4b2b, #09351f, #062314, #03120a

## Harmonies

- Complementary: #ca2175
- Analogous: #21ca21, #21caca
- Triadic: #7521ca, #ca7521
- Split-complementary: #ca21ca, #ca2121
- Tetradic: #2121ca, #ca2175, #caca21

## Colors that go with #21ca75

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 text near-black for #21ca75: softer than #000 and cool enough to feel like part of the same palette. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Zendesk (https://brandsweets.com/colors/brands/zendesk-com). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 4 real palettes, including Minecraft's brand system and Unity's brand system put Blue beside #21ca75, as the accent. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Unity (https://brandsweets.com/colors/brands/unity-com), Spotify (https://brandsweets.com/colors/brands/spotify), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Meadow and Fresh Juice put Mustard Yellow beside #21ca75, as the supporting colour. Seen in: Meadow (https://brandsweets.com/palettes/light#meadow), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box). — https://brandsweets.com/colors/mustard
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #21ca75 in 6 real palettes, including Brilliant's brand system and Docker's brand system, as the accent. Seen in: Brilliant (https://brandsweets.com/colors/brands/brilliant-org), Docker (https://brandsweets.com/colors/brands/docker-com), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #21ca75 in 11 real palettes, including Chime's brand system and WhatsApp's brand system, as the lead colour. Seen in: Chime (https://brandsweets.com/colors/brands/chime-com), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #21ca75 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
- **Light Coral** #f08080 [harmony, pool: split] — Light Coral is a split-complement of #21ca75: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/lightcoral
- **Plum** #dda0dd [harmony, pool: split] — Plum is a split-complement of #21ca75: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Netlify (https://brandsweets.com/colors/brands/netlify-com). — https://brandsweets.com/colors/plum

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

- On white (#ffffff): 2.15:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #15844d (4.73:1); AA: background → #424242 (4.68:1); AAA: text → #10653b (7.13:1); AAA: background → #262626 (7.04:1)
- On black (#000000): 9.77:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Chime** — secondary #1ec677 (Δ 1.278) — https://brandsweets.com/colors/brands/chime-com
- **Figma** — logoGreen #0acf83 (Δ 1.825) — https://brandsweets.com/colors/brands/figma

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/21ca75-a2beb3-d459d2-1f2d2c-e9f1ea?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: "#21ca75" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.