Color
#6699eb
#6699ebrgb(102, 153, 235)hsl(217, 77%, 66%)oklch(0.683 0.134 259.5)Colors that go with #6699eb
Charcoal, Amber and Blue 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 #6699eb: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #6699eb in 7 real palettes, including Ahrefs's brand system and Blueprint, as the supporting colour.
Blue #0000ff
shipped8 real palettes, including Qualcomm's brand system and Unity's brand system put Blue beside #6699eb, as the accent.
Dark Orange #ff8c00
shippedDark Orange shows up next to #6699eb in 4 real palettes, including Ahrefs's brand system and Elastic's brand system, as the lead colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #6699eb: 5 real palettes, including Blueprint and Remix's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #6699eb: 6 real palettes, including Coca-Cola's brand system and Apple's brand system, as the accent.
Medium Sea Green #3cb371
triadicshippedMedium Sea Green completes a triad with #6699eb — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Midnight Blue #191970
shipped8 real palettes, including Blue Mono and Kraken's brand system put Midnight Blue beside #6699eb, as the text colour against it.
Real palettes that use #6699eb
Tints & shades
Harmonies
Contrast
| #6699eb as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.87:1 | fail | fail | fail | |
Aaon black | 7.32:1 | 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 #6699eb 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
#6699eb 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 #6699eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/6699eb-9ca7c4-df624e-201f2d-e9f0f1?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