Color
#401b5a
#401b5argb(64, 27, 90)hsl(275, 54%, 23%)oklch(0.31 0.111 308.2)Colors that go with #401b5a
Charcoal, Blue and Cadet 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #401b5a: softer than #000 and cool enough to feel like part of the same palette.
Blue #0000ff
shippedBlue is paired with #401b5a in 7 real palettes, including Sketch's brand system and Monzo's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Cadet Blue #5f9ea0
shippedCadet Blue is paired with #401b5a in 5 real palettes, including Open House and Coastal, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #401b5a in 7 real palettes, including Marvel's brand system and Casper Sleep's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #401b5a in 11 real palettes, including Discover's brand system and Open House, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Firebrick #b22222
shippedFirebrick is paired with #401b5a in 4 real palettes, including Nintendo's brand system and Fenty Beauty's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Light Pink #ffb6c1
shippedLight Pink is paired with #401b5a in 4 real palettes, including Macaron and Sorbet, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Olive Green #808000
complementaryOlive Green sits directly opposite #401b5a on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #401b5a
Tints & shades
Harmonies
Contrast
| #401b5a as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.79:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.52:1 | 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 #401b5a as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#401b5a 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 #401b5a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/401b5a-b89cc4-c0cb62-2d1f2d-eae9f1?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