Color
#25455b
#25455brgb(37, 69, 91)hsl(204, 42%, 25%)oklch(0.376 0.054 240.3)Colors that go with #25455b
Royal Blue, Teal and Sienna 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.
Royal Blue #4169e1
analogousshippedRoyal Blue is #25455b's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Teal #008080
analogousshippedTeal is #25455b's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Sienna #a0522d
complementaryshippedSienna sits directly opposite #25455b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped10 real palettes, including Alaska Airlines's brand system and Jeep's brand system put Blue beside #25455b, as the accent.
Blush Pink #e8b4b8
shipped4 real palettes, including Garden Wedding and Nursery put Blush Pink beside #25455b, as the supporting colour.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #25455b: 5 real palettes, including Paper & Pine and Open House, as the supporting colour.
Copper #b87333
shippedDesigners have shipped Copper with #25455b: 5 real palettes, including Notion's brand system and Desert Road.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #25455b: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #25455b
Tints & shades
Harmonies
Contrast
| #25455b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 10.09:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.08:1 | 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 #25455b as the background.
Brands using this color
- Auth0secondary · #27455c · Δ0.298
- Hingesecondary · #27455c · Δ0.298
- Jack Daniel'ssecondary · #27455c · Δ0.298
- Lamborghiniaccent · #27455c · Δ0.298
- Pumaaccent · #27455c · Δ0.298
- Stanleyaccent · #27455c · Δ0.298
- Starlinkprimary · #27455c · Δ0.298
- Zoomaccent · #27455c · Δ0.298
- IHGaccent · #1f4456 · Δ1.149
- Codecademyprimary · #1c4454 · Δ1.617
- Tumblrprimary · #304058 · Δ1.872
Fonts for this mood
#25455b 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 #25455b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/25455b-9cafc4-df4e5a-1f222d-e9f1f0?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