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
#223153rgb(34, 49, 83)hsl(222, 42%, 23%)oklch(0.318 0.064 265)Dark Olive Green, Steel Blue and Blush Pink 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.
Dark Olive Green sits directly opposite #223153 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Steel Blue is #223153's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blush Pink is paired with #223153 in 5 real palettes, including Rain Garden and Blush, as the accent — a combination designers have actually shipped, not a computed rotation.
Burlywood is paired with #223153 in 4 real palettes, including Coastal and Polaroid, as the accent — a combination designers have actually shipped, not a computed rotation.
Cadet Blue is paired with #223153 in 8 real palettes, including Open House and Coastal, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Champagne is paired with #223153 in 4 real palettes, including Allbirds's brand system and Darkroom, as the accent — a combination designers have actually shipped, not a computed rotation.
Cobalt Blue is paired with #223153 in 5 real palettes, including Blue Mono and Fintech Trust, as the lead colour — a combination designers have actually shipped, not a computed rotation.
White Smoke is the surface for #223153: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
| #223153 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 12.87:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.63:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #223153 as the background.
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
#223153 reads as cool, dark, luxury. 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 #223153 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/223153-9ca3c4-df6e4e-211f2d-e9eff1?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