Color
#51b0cd
#51b0cdrgb(81, 176, 205)hsl(194, 55%, 56%)oklch(0.711 0.098 220.9)Colors that go with #51b0cd
Charcoal, Amber and Dark Orange 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 #51b0cd: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #51b0cd in 4 real palettes, including Blueprint and Salesforce's brand system, as the accent.
Dark Orange #ff8c00
shippedDark Orange shows up next to #51b0cd in 4 real palettes, including Elastic's brand system and Learning App, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #51b0cd: 6 real palettes, including Coca-Cola's brand system and Open House, as the accent.
Midnight Blue #191970
shipped8 real palettes, including Confluent's brand system and Ford's brand system put Midnight Blue beside #51b0cd, as the lead colour.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #51b0cd: 4 real palettes, including First Snow and Calendly's brand system, as the accent.
Royal Blue #4169e1
shippedRoyal Blue is paired with #51b0cd in 9 real palettes, including Confluent's brand system and Elastic's brand system, as the supporting colour.
Coral #ff7f50
complementaryCoral sits directly opposite #51b0cd on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #51b0cd
Tints & shades
Harmonies
Contrast
| #51b0cd as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.49:1 | fail | fail | fail | |
Aaon black | 8.44:1 | 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 #51b0cd as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#51b0cd 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 #51b0cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/51b0cd-9cb6c4-df4e72-1f242d-e9f1ef?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