Color

#ff5f33

#ff5f33
hex#ff5f33
rgbrgb(255, 95, 51)
hslhsl(13, 100%, 60%)
oklchoklch(0.689 0.203 35.9)
Closest name: tomato (#ff6347)Relative luminance 0.2968

Colors that go with #ff5f33

Charcoal, Light Sea Green and Amber 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#33d3ff

#ff336d · #ffc533

#33ff5f · #5f33ff

Split-complementary

Open in tool →

#33ffc5 · #336dff

#6dff33 · #33d3ff · #c533ff

Contrast

#ff5f33 as textRatioAAAA largeAAAFix
Aaon white
3.03:1failpassfail
  • AA: use #e03100 as the text (4.56:1)
  • AAA: use #a82400 as the text (7.2:1)
  • AA: or shift the background to #2b2b2b (4.68:1)
Aaon black
6.94:1passpassfail
  • AAA: use #ff6338 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ff5f33 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#ff5f33 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff5f33
live endpoint

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.

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

analyze #ff5f33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff5f33-c4a99c-62cbaf-2d281f-f1e9eb?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