Color
#289f9d
#289f9drgb(40, 159, 157)hsl(179, 60%, 39%)oklch(0.64 0.1 193.2)Colors that go with #289f9d
Charcoal, Crimson and Copper 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 #289f9d: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
complementaryshippedCrimson sits directly opposite #289f9d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Copper #b87333
shippedDesigners have shipped Copper with #289f9d: 5 real palettes, including Clean Beauty and Wellness, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #289f9d: 8 real palettes, including Peacock and Gopro's brand system, as the supporting colour.
Midnight Blue #191970
shipped8 real palettes, including Tide Pool and Ford's brand system put Midnight Blue beside #289f9d, as that palette's text colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #289f9d in 5 real palettes, including Confluent's brand system and Khan Academy's brand system, as the supporting colour.
Steel Blue #4682b4
shippedDesigners have shipped Steel Blue with #289f9d: 4 real palettes, including Fintech Trust and Deep Water, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #289f9d in 14 real palettes, including Rain Garden and Still Water, as that palette's text colour.
Real palettes that use #289f9d
Tints & shades
Harmonies
Contrast
| #289f9d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.21:1 | fail | pass | fail | |
Aaon black | 6.54:1 | pass | pass | fail |
|
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #289f9d 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 #289f9d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/289f9d-a2bbbe-d45996-1f272d-e9f1ed?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