Color
#31a9bf
#31a9bfrgb(49, 169, 191)hsl(189, 59%, 47%)oklch(0.68 0.106 212.8)Colors that go with #31a9bf
Charcoal, Tomato and Amber 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 #31a9bf: softer than #000 and cool enough to feel like part of the same palette.
Tomato #ff6347
complementaryshippedTomato sits directly opposite #31a9bf on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #31a9bf in 4 real palettes, including Salesforce's brand system and Blueprint, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #31a9bf: 7 real palettes, including Gopro's brand system and Coca-Cola's brand system, as the lead colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #31a9bf: 5 real palettes, including Figma's brand system and Venmo's brand system, as the accent.
Midnight Blue #191970
shipped10 real palettes, including Confluent's brand system and Ford's brand system put Midnight Blue beside #31a9bf, as the lead colour.
Orange #ffa500
shipped4 real palettes, including Gopro's brand system and Mistral AI's brand system put Orange beside #31a9bf, as the accent.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #31a9bf: 4 real palettes, including First Snow and Calendly's brand system, as the accent.
Real palettes that use #31a9bf
Tints & shades
Harmonies
Contrast
| #31a9bf as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.78:1 | fail | fail | fail | |
Aaon black | 7.56:1 | 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 #31a9bf as the background.
Brands using this color
Fonts for this mood
#31a9bf reads as cool, modern. 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 #31a9bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/31a9bf-a2b7be-df4e7e-1f252d-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