Color

#fb8a18

#fb8a18
hex#fb8a18
rgbrgb(251, 138, 24)
hslhsl(30, 97%, 54%)
oklchoklch(0.743 0.174 57.1)
Closest name: darkorange (#ff8c00)Relative luminance 0.3875

Tints & shades

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

Harmonies

Complementary

Open in tool →

#188afb

#fb1818 · #fbfb18

#18fb8a · #8a18fb

Split-complementary

Open in tool →

#18fbfb · #1818fb

#18fb18 · #188afb · #fb18fb

Contrast

#fb8a18 as textRatioAAAA largeAAAFix
Aaon white
2.4:1failfailfail
  • AA: use #b55c03 as the text (4.67:1)
  • AAA: use #884502 as the text (7.24:1)
  • AA: or shift the background to #3d3d3d (4.53:1)
  • AAA: or shift the background to #1c1c1c (7.1:1)
Aaon black
8.75:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fb8a18 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#fb8a18 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fb8a18
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 #fb8a18 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fb8a18-c4b59c-62c9cb-2d2c1f-f1eae9?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