Color
#4ac9b2
#4ac9b2rgb(74, 201, 178)hsl(169, 54%, 54%)oklch(0.76 0.116 178.8)Colors that go with #4ac9b2
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 #4ac9b2: softer than #000 and cool enough to feel like part of the same palette.
Light Coral #f08080
complementaryshippedLight Coral sits directly opposite #4ac9b2 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 #4ac9b2 in 5 real palettes, including Tiffany & Co.'s brand system and Riot Games's brand system, as the supporting colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #4ac9b2 in 4 real palettes, including Docker's brand system and Khan Academy's brand system, as the supporting colour.
Steel Blue #4682b4
shippedDesigners have shipped Steel Blue with #4ac9b2: 4 real palettes, including Deep Water and Astro's brand system, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #4ac9b2 in 19 real palettes, including Crayon Box and Resort, as the text colour against it.
Wheat #f5deb3
shippedDesigners have shipped Wheat with #4ac9b2: 5 real palettes, including Resort and Mint Chip, as the accent.
Dark Salmon #e9967a
split-complementshippedDark Salmon is a split-complement of #4ac9b2: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Real palettes that use #4ac9b2
Tints & shades
Harmonies
Contrast
| #4ac9b2 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.04:1 | fail | fail | fail | |
Aaon black | 10.29:1 | 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 #4ac9b2 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
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 #4ac9b2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/4ac9b2-a2bebc-d459ab-1f2a2d-e9f1ec?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