First Snow
Open in tool →Ice blue on snow-white with a deep navy — the quietest winter palette; everything is a tint of one cold hue.
Color
#c9ddee
#c9ddee
hex
#c9ddeergb
rgb(201, 221, 238)hsl
hsl(208, 52%, 86%)oklch
oklch(0.888 0.032 243.7)Closest name: Blue Silk (#d0dce8)Relative luminance 0.703
Colors that go with #c9ddee
Charcoal, Lilac and Sand 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 #c9ddee: softer than #000 and cool enough to feel like part of the same palette.
Lilac #c8a2c8
triadicshippedLilac completes a triad with #c9ddee — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Sand #c2b280
split-complementshippedSand is a split-complement of #c9ddee: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Dark Salmon #e9967a
complementaryshippedDark Salmon sits directly opposite #c9ddee 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 #c9ddee in 21 real palettes, including Blueprint and Trailhead, as the accent.
Blue #0000ff
shipped47 real palettes, including Uber's brand system and Dropbox's brand system put Blue beside #c9ddee, as the accent.
Blue Violet #8a2be2
shippedBlue Violet is paired with #c9ddee in 12 real palettes, including Gemstone and ClickUp's brand system, as the supporting colour.
Brown #a52a2a
shipped5 real palettes, including Velvet and Woodsmoke put Brown beside #c9ddee, as the lead colour.
Real palettes that use #c9ddee
Tints & shades
Harmonies
Contrast
| #c9ddee as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.39:1 | fail | fail | fail | |
Aaon black | 15.06:1 | 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 #c9ddee as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#c9ddee reads as cool, light, clean. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #c9ddee
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #c9ddee and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/c9ddee-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