Color

#5879ca

#5879ca
hex#5879ca
rgbrgb(88, 121, 202)
hslhsl(223, 52%, 57%)
oklchoklch(0.589 0.13 265.8)
Closest name: Flood (#6677bb)Relative luminance 0.2001

Colors that go with #5879ca

Charcoal, Sea Green 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 →

#caaa58

#58b2ca · #7158ca

#ca5879 · #79ca58

Split-complementary

Open in tool →

#ca7158 · #b2ca58

#ca58b2 · #caaa58 · #58ca71

Contrast

#5879ca as textRatioAAAA largeAAAFix
Aaon white
4.2:1failpassfail
  • AA: use #5172c8 as the text (4.57:1)
  • AAA: use #3353a3 as the text (7.22:1)
  • AA: or shift the background to #0f0f0f (4.57:1)
Aaon black
5:1passpassfail
  • AAA: use #7b95d5 as the text (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5879ca as the background.

Brands using this color

Fonts for this mood

#5879ca reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5879ca
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 #5879ca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5879ca-9ca3c4-df704e-211f2d-e9eff1?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