Color

#cb310b

#cb310b
hex#cb310b
rgbrgb(203, 49, 11)
hslhsl(12, 90%, 42%)
oklchoklch(0.553 0.195 33.5)
Closest name: Bento Box (#cc363c)Relative luminance 0.1492

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#0ba5cb

#cb0b45 · #cb920b

#0bcb31 · #310bcb

Split-complementary

Open in tool →

#0bcb92 · #0b45cb

#45cb0b · #0ba5cb · #920bcb

Contrast

#cb310b as textRatioAAAA largeAAAFix
Aaon white
5.27:1passpassfail
  • AAA: use #a52809 as the text (7.22:1)
Aaon black
3.98:1failpassfail
  • AA: use #df360c as the text (4.67:1)
  • AAA: use #f56a47 as the text (7.04:1)
  • AA: or shift the background to #ededed (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #cb310b as the background.

Brands using this color

Fonts for this mood

#cb310b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #cb310b
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #cb310b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cb310b-c4a99c-62cbad-2d281f-f1e9ec?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md