# #5bbe91

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

## Values

- Hex: `#5bbe91`
- RGB: rgb(91, 190, 145)
- HSL: hsl(153, 43%, 55%)
- OKLCH: oklch(0.729 0.115 161.9)
- Relative luminance: 0.411
- Nearest named color: Bleached Olive (#55bb88, Δ 1.483) — https://brandsweets.com/colors/bleached-olive
- Moods: neutral
- Page: https://brandsweets.com/colors/5bbe91

## Tints & shades

- Tints (toward white): #69c39b, #7ccba7, #8ad0b1, #99d6bb, #abdec7, #bae3d1, #c8e9da, #d7efe4, #e9f6f0, #f8fcfa
- Shades (toward black): #49b685, #41a478, #3a926a, #33805d, #2c6d50, #235840, #1c4533, #143325, #0d2118, #060f0b

## Harmonies

- Complementary: #be5b87
- Analogous: #5bbe60, #5bb9be
- Triadic: #915bbe, #be915b
- Split-complementary: #be5bb9, #be605b
- Tetradic: #605bbe, #be5b87, #b9be5b

## Colors that go with #5bbe91

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 #5bbe91: 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), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Docker (https://brandsweets.com/colors/brands/docker-com), N26 (https://brandsweets.com/colors/brands/n26-com). — https://brandsweets.com/colors/charcoal
- **Hot Pink** #ff69b4 [harmony, pool: complementary] — Hot Pink sits directly opposite #5bbe91 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/hotpink
- **Blue** #0000ff [pool] — 5 real palettes, including Unity's brand system and Canva's brand system put Blue beside #5bbe91, as the supporting colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Canva (https://brandsweets.com/colors/brands/canva-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #5bbe91 in 4 real palettes, including DuckDuckGo's brand system and Diner, as the supporting colour. Seen in: DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com), Diner (https://brandsweets.com/palettes/vivid#diner), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Riot Games (https://brandsweets.com/colors/brands/riotgames-com). — https://brandsweets.com/colors/crimson
- **Dark Salmon** #e9967a [harmony, pool: triadic] — Dark Salmon completes a triad with #5bbe91 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Polaroid (https://brandsweets.com/palettes/light#polaroid), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Spline (https://brandsweets.com/colors/brands/spline-design). — https://brandsweets.com/colors/darksalmon
- **Mustard Yellow** #ffdb58 [pool] — 5 real palettes, including Fresh Juice and Crayon Box put Mustard Yellow beside #5bbe91, as the supporting colour. Seen in: Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Meadow (https://brandsweets.com/palettes/light#meadow), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/mustard
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #5bbe91 in 4 real palettes, including Khan Academy's brand system and Brilliant's brand system, as the accent. Seen in: Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), Docker (https://brandsweets.com/colors/brands/docker-com), Confluent (https://brandsweets.com/colors/brands/confluent-io). — https://brandsweets.com/colors/royalblue
- **Slate Gray** #708090 [pool] — 4 real palettes, including Indigo SaaS and Ledger Dark put Slate Gray beside #5bbe91, as the supporting colour. Seen in: Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Greige (https://brandsweets.com/palettes/neutral#greige). — https://brandsweets.com/colors/slategray

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

- On white (#ffffff): 2.28:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #348360 (4.6:1); AA: background → #404040 (4.55:1); AAA: text → #276248 (7.17:1); AAA: background → #212121 (7.07:1)
- On black (#000000): 9.22:1 — AA pass, AA-large pass, AAA pass

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/5bbe91-a2beb5-d459cc-1f2d2d-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: "#5bbe91" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.