Color
#40d5dd
#40d5ddrgb(64, 213, 221)hsl(183, 70%, 56%)oklch(0.8 0.122 200.4)Colors that go with #40d5dd
Charcoal, Light Coral and Crimson lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #40d5dd: softer than #000 and cool enough to feel like part of the same palette.
Light Coral #f08080
complementaryshippedLight Coral sits directly opposite #40d5dd on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Crimson #dc143c
shippedCrimson is paired with #40d5dd in 4 real palettes, including Tiffany & Co.'s brand system and Riot Games's brand system, as the supporting colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #40d5dd: 5 real palettes, including Patreon's brand system and Opensea's brand system, as the accent.
Royal Blue #4169e1
shippedRoyal Blue is paired with #40d5dd in 5 real palettes, including Docker's brand system and Telehealth, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #40d5dd in 13 real palettes, including Crayon Box and Boeing's brand system, as the text colour against it.
Wheat #f5deb3
shippedDesigners have shipped Wheat with #40d5dd: 4 real palettes, including Mint Chip and Oatly's brand system, as the accent.
Blue #0000ff
shipped3 real palettes, including Canva's brand system and Uber's brand system put Blue beside #40d5dd, as the accent.
Real palettes that use #40d5dd
Tints & shades
Harmonies
Contrast
| #40d5dd as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.78:1 | fail | fail | fail | |
Aaon black | 11.78:1 | pass | pass | pass | Passes AAA — no fix needed. |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40d5dd as the background.
Brands using this color
Fonts for this mood
#40d5dd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #40d5dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/40d5dd-a2b9be-d4598e-1f262d-e9f1ee?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md