Color
#451f5b
#451f5brgb(69, 31, 91)hsl(278, 49%, 24%)oklch(0.324 0.107 311)Colors that go with #451f5b
Charcoal, Sea Green and 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 #451f5b: softer than #000 and cool enough to feel like part of the same palette.
Sea Green #2e8b57
complementaryshippedSea Green sits directly opposite #451f5b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped8 real palettes, including Sketch's brand system and Tim Hortons's brand system put Blue beside #451f5b, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #451f5b: 4 real palettes, including Open House and Coastal, as the supporting colour.
Copper #b87333
shippedDesigners have shipped Copper with #451f5b: 4 real palettes, including Dusk and Bramble, as the accent.
Crimson #dc143c
shippedCrimson is paired with #451f5b in 7 real palettes, including Marvel's brand system and Casper Sleep's brand system, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #451f5b: 4 real palettes, including Kraken's brand system and Vimeo's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #451f5b: 12 real palettes, including Hinge's brand system and Discover's brand system, as the accent.
Real palettes that use #451f5b
Tints & shades
Harmonies
Contrast
| #451f5b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.12:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.6:1 | 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 #451f5b 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
#451f5b 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 #451f5b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/451f5b-ba9cc4-bbcb62-2d1f2c-ebe9f1?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