# #40b5ab

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

## Values

- Hex: `#40b5ab`
- RGB: rgb(64, 181, 171)
- HSL: hsl(175, 48%, 48%)
- OKLCH: oklch(0.706 0.104 187.1)
- Relative luminance: 0.3708
- Nearest named color: lightseagreen (#20b2aa, Δ 1.789) — https://brandsweets.com/colors/lightseagreen
- Moods: neutral
- Page: https://brandsweets.com/colors/40b5ab

## Tints & shades

- Tints (toward white): #4ec1b7, #60c7bf, #73cec6, #86d5ce, #99dbd6, #ace2dd, #bfe8e5, #d2efed, #e5f6f4, #f7fcfc
- Shades (toward black): #3aa69d, #34938b, #2e847d, #28716b, #22625d, #1d534f, #17403d, #11312e, #0b1e1d, #050f0e

## Harmonies

- Complementary: #b54049
- Analogous: #40b571, #4084b5
- Triadic: #ab40b5, #b5ab40
- Split-complementary: #b54084, #b57140
- Tetradic: #7140b5, #b54049, #84b540

## Colors that go with #40b5ab

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 #40b5ab: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lagoon (https://brandsweets.com/palettes/vivid#lagoon), N26 (https://brandsweets.com/colors/brands/n26-com), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Lido (https://brandsweets.com/palettes/vivid#lido). — https://brandsweets.com/colors/charcoal
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #40b5ab in 5 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), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/darkolivegreen
- **Denim** #1560bd [pool] — Designers have shipped Denim with #40b5ab: 4 real palettes, including Open House and Peacock, as the lead colour. Seen in: Open House (https://brandsweets.com/palettes/clean#open-house), Peacock (https://brandsweets.com/palettes/vivid#peacock), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #40b5ab: 4 real palettes, including Unity's brand system and Patreon's brand system, as the lead colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Patreon (https://brandsweets.com/colors/brands/patreon-com), Spline (https://brandsweets.com/colors/brands/spline-design), Figma (https://brandsweets.com/colors/brands/figma). — https://brandsweets.com/colors/dodgerblue
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Ford's brand system and Confluent's brand system put Midnight Blue beside #40b5ab, as the lead colour. Seen in: Ford (https://brandsweets.com/colors/brands/ford-com), Confluent (https://brandsweets.com/colors/brands/confluent-io), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), SoFi (https://brandsweets.com/colors/brands/sofi-com). — https://brandsweets.com/colors/midnightblue
- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Crayon Box and Lido put Mustard Yellow beside #40b5ab, as the accent. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Lido (https://brandsweets.com/palettes/vivid#lido), Diner (https://brandsweets.com/palettes/vivid#diner), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice). — https://brandsweets.com/colors/mustard
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #40b5ab in 4 real palettes, including Cursor's brand system and Neon's brand system, as the lead colour. Seen in: Cursor (https://brandsweets.com/colors/brands/cursor-com), Neon (https://brandsweets.com/colors/brands/neon-tech), Launch Orange (https://brandsweets.com/palettes/bold#launch-orange), Figma (https://brandsweets.com/colors/brands/figma). — https://brandsweets.com/colors/orangered
- **Pale Violet Red** #db7093 [harmony: complementary] — Pale Violet Red sits directly opposite #40b5ab 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/palevioletred

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

- On white (#ffffff): 2.5:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #2d8079 (4.69:1); AA: background → #383838 (4.7:1); AAA: text → #22625d (7.06:1); AAA: background → #171717 (7.18:1)
- On black (#000000): 8.42:1 — 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/40b5ab-a2bdbe-d4599f-1f282d-e9f1ed?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: "#40b5ab" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.