Color
#421a61
#421a61rgb(66, 26, 97)hsl(274, 58%, 24%)oklch(0.317 0.121 306.5)Colors that go with #421a61
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 #421a61: softer than #000 and cool enough to feel like part of the same palette.
Blue #0000ff
shipped4 real palettes, including Sketch's brand system and Monzo's brand system put Blue beside #421a61, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #421a61: 4 real palettes, including SoFi's brand system and Open House, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #421a61 in 5 real palettes, including Casper Sleep's brand system and Marvel's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #421a61: 10 real palettes, including Discover's brand system and Hinge's brand system, as the supporting colour.
Orange Red #ff4500
shippedOrange Red is paired with #421a61 in 4 real palettes, including Audi's brand system and Tumblr's brand system, as the accent.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #421a61: 5 real palettes, including Frost & Ember and Macaron, as the supporting colour.
Olive Green #808000
complementaryOlive Green sits directly opposite #421a61 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 #421a61
Tints & shades
Harmonies
Contrast
| #421a61 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.53:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.55:1 | 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 #421a61 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
#421a61 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 #421a61 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/421a61-b79cc4-c2cb62-2d1f2d-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