Color
#5b100b
#5b100brgb(91, 16, 11)hsl(4, 78%, 20%)oklch(0.31 0.108 28.9)Colors that go with #5b100b
Royal Blue, Teal 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.
Royal Blue #4169e1
triadicshippedRoyal Blue completes a triad with #5b100b — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Teal #008080
complementaryshippedTeal sits directly opposite #5b100b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped5 real palettes, including Tim Hortons's brand system and Dunkin''s brand system put Blue beside #5b100b, as the accent.
Copper #b87333
shippedDesigners have shipped Copper with #5b100b: 8 real palettes, including Chipotle's brand system and Bakery, as the accent.
Crimson #dc143c
shippedCrimson is paired with #5b100b in 9 real palettes, including M&M's's brand system and Burger King's brand system, as the supporting colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #5b100b in 5 real palettes, including Cider and Oatmeal, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #5b100b: 4 real palettes, including Heinz's brand system and Box's brand system, as the accent.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #5b100b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use #5b100b
Tints & shades
Harmonies
Contrast
| #5b100b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.78:1 | 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 #5b100b 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
#5b100b 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 #5b100b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/5b100b-c4a39c-62cb9f-2d261f-f1e9ed?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