Color
#252b56
#252b56rgb(37, 43, 86)hsl(233, 40%, 24%)oklch(0.308 0.077 275)Colors that go with #252b56
Dark Olive Green, Sea Green and Slate Blue 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 #556b2f
complementaryshippedDark Olive Green sits directly opposite #252b56 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #252b56 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Slate Blue #6a5acd
analogousshippedSlate Blue is #252b56's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Steel Blue #4682b4
analogousshippedSteel Blue is #252b56's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber #ffbf00
shippedAmber is paired with #252b56 in 7 real palettes, including Beach Hut and Southwest Airlines's brand system, as the supporting colour.
Blue #0000ff
shipped17 real palettes, including Sketch's brand system and Monzo's brand system put Blue beside #252b56, as the accent.
Blush Pink #e8b4b8
shipped5 real palettes, including Rain Garden and Blush put Blush Pink beside #252b56, as the accent.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #252b56: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #252b56
Tints & shades
Harmonies
Contrast
| #252b56 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.47:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.56:1 | 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 #252b56 as the background.
Brands using this color
Fonts for this mood
#252b56 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 #252b56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/252b56-9c9cc4-df884e-241f2d-e9eef1?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