Color
#42013b
#42013brgb(66, 1, 59)hsl(306, 97%, 13%)oklch(0.262 0.115 333.6)Colors that go with #42013b
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 body-text near-black for #42013b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Sea Green #2e8b57
complementaryshippedSea Green sits directly opposite #42013b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped9 real palettes, including Sketch's brand system and Burger King's brand system put Blue beside #42013b, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #42013b: 5 real palettes, including Dusk and Open House, as the supporting colour.
Champagne #f7e7ce
shipped4 real palettes, including Allbirds's brand system and Bramble put Champagne beside #42013b, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #42013b: 4 real palettes, including Hershey's's brand system and Blue Mono, as the supporting colour.
Copper #b87333
shippedDesigners have shipped Copper with #42013b: 6 real palettes, including Dusk and Chipotle's brand system, as the accent.
Crimson #dc143c
shippedCrimson is paired with #42013b in 6 real palettes, including Tim Hortons's brand system and Pinterest's brand system, as the supporting colour.
Real palettes that use #42013b
Tints & shades
Harmonies
Contrast
| #42013b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 16.16:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.3:1 | 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 #42013b 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
#42013b reads as warm, vivid, dark. 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 #42013b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/42013b-c19fb9-8acb62-2d1f26-eee9f1?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