Color

#037fd8

#037fd8
hex#037fd8
rgbrgb(3, 127, 216)
hslhsl(205, 97%, 43%)
oklchoklch(0.586 0.164 249.7)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.2016

Colors that go with #037fd8

Charcoal, Crimson and Copper 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 →

#d85c03

#03d8c6 · #0315d8

#d8037f · #7fd803

Split-complementary

Open in tool →

#d80315 · #d8c603

#c603d8 · #d85c03 · #15d803

Contrast

#037fd8 as textRatioAAAA largeAAAFix
Aaon white
4.17:1failpassfail
  • AA: use #0379ce as the text (4.54:1)
  • AAA: use #025997 as the text (7.3:1)
  • AA: or shift the background to #0f0f0f (4.59:1)
Aaon black
5.03:1passpassfail
  • AAA: use #139bfb as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #037fd8 as the background.

Brands using this color

Fonts for this mood

#037fd8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #037fd8
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 #037fd8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/037fd8-9cafc4-df4e58-1f212d-e9f1f0?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