Color
#66b8eb
#66b8ebrgb(102, 184, 235)hsl(203, 77%, 66%)oklch(0.751 0.109 237.9)Colors that go with #66b8eb
Charcoal, Sandy Brown 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 #66b8eb: softer than #000 and cool enough to feel like part of the same palette.
Sandy Brown #f4a460
complementaryshippedSandy Brown sits directly opposite #66b8eb 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 #66b8eb in 4 real palettes, including Blueprint and NBA's brand system, as the accent.
Blue #0000ff
shipped4 real palettes, including Warp's brand system and Canva's brand system put Blue beside #66b8eb, as the supporting colour.
Dark Orange #ff8c00
shippedDark Orange shows up next to #66b8eb in 4 real palettes, including Learning App and PayPal's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #66b8eb: 7 real palettes, including Coca-Cola's brand system and Venmo's brand system, as the accent.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #66b8eb: 4 real palettes, including Patreon's brand system and Venmo's brand system, as the accent.
Midnight Blue #191970
shipped10 real palettes, including Blue Mono and Telehealth put Midnight Blue beside #66b8eb, as the text colour against it.
Real palettes that use #66b8eb
Tints & shades
Harmonies
Contrast
| #66b8eb as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.18:1 | fail | fail | fail | |
Aaon black | 9.62:1 | 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 #66b8eb as the background.
Brands using this color
Fonts for this mood
#66b8eb 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 #66b8eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/66b8eb-9cb0c4-df4e5d-1f222d-e9f1f0?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