# #18cd73

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

## Values

- Hex: `#18cd73`
- RGB: rgb(24, 205, 115)
- HSL: hsl(150, 79%, 45%)
- OKLCH: oklch(0.746 0.185 153.7)
- Relative luminance: 0.4509
- Nearest named color: Emerald Green (#50c878, Δ 2.802) — https://brandsweets.com/colors/emerald-green
- Moods: vivid
- Page: https://brandsweets.com/colors/18cd73

## Tints & shades

- Tints (toward white): #1be480, #36e78f, #4dea9c, #64eda8, #7ff0b8, #96f3c4, #adf5d1, #c4f8de, #dffbed, #f6fefa
- Shades (toward black): #16bb69, #14a95e, #129754, #10844a, #0d7240, #0b5b33, #094929, #06371f, #042514, #02120a

## Harmonies

- Complementary: #cd1873
- Analogous: #18cd18, #18cdcd
- Triadic: #7318cd, #cd7318
- Split-complementary: #cd18cd, #cd1818
- Tetradic: #1818cd, #cd1873, #cdcd18

## Colors that go with #18cd73

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 #18cd73: 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 Spotify's brand system put Blue beside #18cd73, 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), 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 #18cd73, 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 #18cd73 in 4 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 #18cd73 in 10 real palettes, including WhatsApp's brand system and Chime's brand system, as the supporting colour. Seen in: WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com), Chime (https://brandsweets.com/colors/brands/chime-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 #18cd73 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 #18cd73: 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
- **Cornflower Blue** #6495ed [harmony, pool: triadic] — Cornflower Blue completes a triad with #18cd73 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/cornflowerblue

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

- On white (#ffffff): 2.1:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #10844a (4.75:1); AA: background → #454545 (4.57:1); AAA: text → #0c6438 (7.25:1); AAA: background → #262626 (7.22:1)
- On black (#000000): 10.02:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **WhatsApp** — accent #43cd66 (Δ 1.845) — https://brandsweets.com/colors/brands/whatsapp-com
- **Figma** — logoGreen #0acf83 (Δ 1.856) — https://brandsweets.com/colors/brands/figma

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/18cd73-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: "#18cd73" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.