# #21c06b

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

## Values

- Hex: `#21c06b`
- RGB: rgb(33, 192, 107)
- HSL: hsl(148, 71%, 44%)
- OKLCH: oklch(0.712 0.175 153.1)
- Relative luminance: 0.3908
- Nearest named color: Fennel Fiesta (#00bb77, Δ 2.454) — https://brandsweets.com/colors/fennel-fiesta
- Moods: vivid
- Page: https://brandsweets.com/colors/21c06b

## Tints & shades

- Tints (toward white): #24d677, #3bde87, #51e194, #6be6a4, #81eab2, #96edbf, #b1f2cf, #c6f5dc, #e0faec, #f6fefa
- Shades (toward black): #1eae61, #1b9d57, #188c4e, #157a44, #12693a, #0f5731, #0c4627, #09341d, #062313, #03110a

## Harmonies

- Complementary: #c02176
- Analogous: #26c021, #21c0bb
- Triadic: #6b21c0, #c06b21
- Split-complementary: #bb21c0, #c02126
- Tetradic: #2126c0, #c02176, #c0bb21

## Colors that go with #21c06b

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 #21c06b: softer than #000 and cool enough to feel like part of the same palette. Seen in: Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Docker (https://brandsweets.com/colors/brands/docker-com), Zendesk (https://brandsweets.com/colors/brands/zendesk-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #21c06b in 5 real palettes, including Brilliant's brand system and Khan Academy's brand system, as the accent. Seen in: Brilliant (https://brandsweets.com/colors/brands/brilliant-org), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), Docker (https://brandsweets.com/colors/brands/docker-com), Console Light (https://brandsweets.com/palettes/technical#console-light). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #21c06b in 10 real palettes, including Chime's brand system and Obsidian's brand system, as the lead colour. Seen in: Chime (https://brandsweets.com/colors/brands/chime-com), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/taupe
- **Orchid** #da70d6 [harmony: complementary] — Orchid sits directly opposite #21c06b 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/orchid
- **Hot Pink** #ff69b4 [harmony, pool: split] — Hot Pink is a split-complement of #21c06b: 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). — https://brandsweets.com/colors/hotpink
- **Blue** #0000ff [pool] — 3 real palettes, including Spotify's brand system and Unity's brand system put Blue beside #21c06b, as the accent. Seen in: Spotify (https://brandsweets.com/colors/brands/spotify), Unity (https://brandsweets.com/colors/brands/unity-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/blue
- **Cornflower Blue** #6495ed [harmony, pool: triadic] — Cornflower Blue completes a triad with #21c06b — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Spotify (https://brandsweets.com/colors/brands/spotify), Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/cornflowerblue
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #21c06b 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), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com). — https://brandsweets.com/colors/darkolivegreen

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

- On white (#ffffff): 2.38:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #17874b (4.56:1); AA: background → #3d3d3d (4.56:1); AAA: text → #116438 (7.23:1); AAA: background → #1c1c1c (7.16:1)
- On black (#000000): 8.82:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Ubereats** — primary #06c167 (Δ 0.837) — https://brandsweets.com/colors/brands/ubereats-com
- **Chime** — secondary #1ec677 (Δ 1.927) — https://brandsweets.com/colors/brands/chime-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/21c06b-a2beb2-d259d4-1f2d2c-eaf1e9?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: "#21c06b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.