#B4372A#B4372A
#B4372A is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.0% C 0.164 H 29.6°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).
Color values
| HEX | #B4372A |
|---|---|
| RGB | rgb(180, 55, 42) |
| HSL | hsl(6, 62%, 44%) |
| HSV | hsv(6, 77%, 71%) |
| CMYK | cmyk(0%, 69.4%, 76.7%, 29.4%) |
| CIE-LAB | lab(42.16, 49.68, 36.46) |
| CIE-LCH | lch(42.16, 61.62, 36.28°) |
| OKLab | oklab(52.04% 0.1422 0.0808) |
| OKLCH | oklch(52.04% 0.164 29.6) |
| XYZ | xyz(20.6088, 12.6059, 3.5381) |
| Luminance | 0.1260 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Firebrick
#B22222
ΔE00 3.43
Brick
#A03623
ΔE00 4.28
Brownish Red
#9E3623
ΔE00 4.65
Scarlet
#BE0119
ΔE00 4.73
Brown
#A52A2A
ΔE00 5.08
Dull Red
#BB3F3F
ΔE00 5.20
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B4372A #2AA7B4
analogous
#B42A62 #B4372A #B47C2A
triadic
#B4372A #2AB437 #372AB4
tetradic
#B4372A #62B42A #2AA7B4 #7C2AB4
square
#B4372A #62B42A #2AA7B4 #7C2AB4
split-complementary
#B4372A #2AB47C #2A62B4
monochromatic
#511913 #82281E #B4372A #D45447 #E08279
Accessibility & contrast
On white
5.96
#B4372A on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.52
#B4372A on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B4372A
5.96:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B4372A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B4372A | 1.00 | 5.96 | 3.52 | 5.96 |
| #FFFFFF | 5.96 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.52 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.96 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5B5227
Deuteranopia (green-blind)
#7A6E25
Tritanopia (blue-blind)
#C60B35
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #b4372a; /* rgb */ color: rgb(180, 55, 42); /* oklch */ color: oklch(52.0% 0.164 29.6);
Tailwind
colors: {
custom: {
50: '#d37564',
500: '#b4372a',
950: '#000000',
},
}SCSS
$custom: #b4372a; $custom-light: #d37564; $custom-dark: #000000;
JSON
{
"hex": "#b4372a",
"rgb": {
"r": 180,
"g": 55,
"b": 42
},
"hsl": {
"h": 5.652,
"s": 62.162,
"l": 43.529
},
"oklch": {
"l": 0.52044,
"c": 0.16353,
"h": 29.6
},
"luminance": 0.12603
}Semantic roles & 50–950 ramp
primary
#B4372A
secondary
#72C0C8
accent
#D6E543
background
#FEF7F6
surface
#FCEDEB
border
#D5C8C6
text
#160905
muted
#847B7A