Frost & Ember
Open in tool →Navy and frost with one ember red — the classic cold-with-a-warm-accent structure, borrowed from a thousand ski posters.
Color
#a9dde0
#a9dde0
hex
#a9dde0rgb
rgb(169, 221, 224)hsl
hsl(183, 47%, 77%)oklch
oklch(0.863 0.054 200.6)Closest name: Crystal (#a7d8de)Relative luminance 0.6553
Colors that go with #a9dde0
Charcoal, Dark Salmon 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 #a9dde0: softer than #000 and cool enough to feel like part of the same palette.
Dark Salmon #e9967a
complementaryshippedDark Salmon sits directly opposite #a9dde0 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 #a9dde0 in 4 real palettes, including Salesforce's brand system and Blueprint, as the accent.
Brown #a52a2a
shipped4 real palettes, including Woodsmoke and Velvet put Brown beside #a9dde0, as the accent.
Burlywood #deb887
shippedBurlywood is paired with #a9dde0 in 5 real palettes, including Coastal and Coffee Bar, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #a9dde0: 4 real palettes, including Estate and Coastal, as the supporting colour.
Copper #b87333
shippedDesigners have shipped Copper with #a9dde0: 6 real palettes, including Bramble and Dusk, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #a9dde0 in 5 real palettes, including Frost & Ember and Tiffany & Co.'s brand system, as the accent.
Real palettes that use #a9dde0
Tints & shades
Harmonies
Contrast
| #a9dde0 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.49:1 | fail | fail | fail | |
Aaon black | 14.11:1 | 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 #a9dde0 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
Fonts for this mood
#a9dde0 reads as cool, light, clean. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #a9dde0
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 #a9dde0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/a9dde0-a2b9be-d4598e-1f262d-e9f1ee?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