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
GoodAgainst Black
4.45
PoorMatching Algorithm
Method
Using LAB colour space for perceptually accurate matching (CIE94 formula).
Distance
4.10
ExcellentInput Colour
Nearest Tailwind Match
Distance: 4.10
All green Shades
Colour Combinations
Monochromatic
Complementary
Analogous
Triadic
Brand Palette
Primary brand color
rose-600Brand accent
red-600Complementary accent
teal-400Text & UI elements
slate-800Backgrounds & borders
slate-200