Color
#669ac7
#669ac7rgb(102, 154, 199)hsl(208, 46%, 59%)oklch(0.668 0.087 245.7)Colors that go with #669ac7
Charcoal, Medium Sea Green and Peru 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 #669ac7: softer than #000 and cool enough to feel like part of the same palette.
Medium Sea Green #3cb371
triadicshippedMedium Sea Green completes a triad with #669ac7 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Peru #cd853f
complementaryshippedPeru sits directly opposite #669ac7 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 #669ac7 in 9 real palettes, including NBA's brand system and Beach Hut, as the lead colour.
Blue #0000ff
shipped6 real palettes, including Qualcomm's brand system and Unity's brand system put Blue beside #669ac7, as the accent.
Copper #b87333
shippedDesigners have shipped Copper with #669ac7: 4 real palettes, including Dusk and Notion's brand system, as the accent.
Crimson #dc143c
shippedCrimson is paired with #669ac7 in 4 real palettes, including Diner and JBL's brand system, as the lead colour.
Dark Orange #ff8c00
shippedDark Orange shows up next to #669ac7 in 4 real palettes, including Elastic's brand system and Learning App, as the lead colour.
Real palettes that use #669ac7
Tints & shades
Harmonies
Contrast
| #669ac7 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.99:1 | fail | fail | fail | |
Aaon black | 7.01:1 | 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 #669ac7 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
#669ac7 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 #669ac7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/669ac7-9cadc4-df4e51-1f212d-e9f1f1?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