# #59a3ab

A color — cool, muted. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#59a3ab`
- RGB: rgb(89, 163, 171)
- HSL: hsl(186, 33%, 51%)
- OKLCH: oklch(0.671 0.075 204.6)
- Relative luminance: 0.3126
- Nearest named color: Atlas Cedar (#5ca0a7, Δ 0.877) — https://brandsweets.com/colors/atlas-cedar
- Moods: cool, muted
- Page: https://brandsweets.com/colors/59a3ab

## Tints & shades

- Tints (toward white): #6aacb4, #77b4bb, #88bdc3, #99c7cc, #aad0d4, #b8d8db, #c9e1e4, #daeaec, #e7f2f3, #f8fbfc
- Shades (toward black): #4f949c, #48878e, #3f777d, #37676d, #305a5f, #274a4e, #1f3a3d, #162a2c, #0f1d1f, #070d0e

## Harmonies

- Complementary: #ab6159
- Analogous: #59ab8a, #597aab
- Triadic: #ab59a3, #a3ab59
- Split-complementary: #ab597a, #ab8a59
- Tetradic: #8a59ab, #ab6159, #7aab59

## Colors that go with #59a3ab

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 #59a3ab: softer than #000 and cool enough to feel like part of the same palette. Seen in: N26 (https://brandsweets.com/colors/brands/n26-com), Lido (https://brandsweets.com/palettes/vivid#lido), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/charcoal
- **Terracotta** #e2725b [harmony, pool: complementary] — Terracotta sits directly opposite #59a3ab on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Alpine (https://brandsweets.com/palettes/cool#alpine), Resort (https://brandsweets.com/palettes/light#resort). — https://brandsweets.com/colors/terracotta
- **Burlywood** #deb887 [pool] — Burlywood is paired with #59a3ab in 4 real palettes, including Coastal and Polaroid, as the accent. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Polaroid (https://brandsweets.com/palettes/light#polaroid), Kiln (https://brandsweets.com/palettes/dark#kiln), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard). — https://brandsweets.com/colors/burlywood
- **Copper** #b87333 [pool] — Designers have shipped Copper with #59a3ab: 6 real palettes, including Dusk and Clean Beauty, as the accent. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Atelier (https://brandsweets.com/palettes/elegant#atelier), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #59a3ab in 5 real palettes, including Diner and Riot Games's brand system, as the lead colour. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), Riot Games (https://brandsweets.com/colors/brands/riotgames-com), Redfin (https://brandsweets.com/colors/brands/redfin-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/crimson
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #59a3ab in 5 real palettes, including Oatmeal and Undergrowth, as the lead colour. Seen in: Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen). — https://brandsweets.com/colors/darkolivegreen
- **Denim** #1560bd [pool] — Designers have shipped Denim with #59a3ab: 5 real palettes, including Open House and Dusk, as the lead colour. Seen in: Open House (https://brandsweets.com/palettes/clean#open-house), Dusk (https://brandsweets.com/palettes/cool#dusk), Peacock (https://brandsweets.com/palettes/vivid#peacock), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #59a3ab: 4 real palettes, including Studio Grey and Unity's brand system, as the accent. Seen in: Studio Grey (https://brandsweets.com/palettes/minimal#studio-grey), Unity (https://brandsweets.com/colors/brands/unity-com), Spline (https://brandsweets.com/colors/brands/spline-design), Patreon (https://brandsweets.com/colors/brands/patreon-com). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 2.9:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #437e84 (4.61:1); AA: background → #303030 (4.56:1); AAA: text → #325d62 (7.3:1); AAA: background → #050505 (7.04:1)
- On black (#000000): 7.25:1 — 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/59a3ab-a2b8be-df4e86-1f262d-e9f1ee?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: "#59a3ab" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.