A vibrant crimson in mid-tone tones.

  • Commonly used for interactive elements like buttons and links, secondary interface elements, visual indicators and status markers, decorative accents and highlights, and background elements and containers
  • This is Costco's primary brand colour.

Colour Values

HEX

#e31837

RGB

227, 24, 55

HSL

351, 81, 49

OKLCH

oklch(58.49% 0.2265 22.24)

Contrast Analysis

Against White

4.72

Good

Against Black

4.45

Poor

Matching Algorithm

Method

Using LAB colour space for perceptually accurate matching (CIE94 formula).

Distance

4.10

Excellent
Input Colour
Nearest Match
Distance: 4.10

Colour Combinations

Monochromatic

Complementary

Analogous

Triadic

Brand Palette

Primary brand color
rose-600
Brand accent
red-600
Complementary accent
teal-400
Text & UI elements
slate-800
Backgrounds & borders
slate-200