#B3372F#B3372F
#B3372F is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.9% C 0.162 H 27.8°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #B3372F |
|---|---|
| RGB | rgb(179, 55, 47) |
| HSL | hsl(4, 58%, 44%) |
| HSV | hsv(4, 74%, 70%) |
| CMYK | cmyk(0%, 69.3%, 73.7%, 29.8%) |
| CIE-LAB | lab(42.04, 49.55, 33.42) |
| CIE-LCH | lch(42.04, 59.77, 34.00°) |
| OKLab | oklab(51.93% 0.143 0.0755) |
| OKLCH | oklch(51.93% 0.162 27.8) |
| XYZ | xyz(20.4720, 12.5244, 4.0282) |
| Luminance | 0.1252 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Firebrick
#B22222
ΔE00 3.26
Dull Red
#BB3F3F
ΔE00 4.02
Brown
#A52A2A
ΔE00 4.24
Brick
#A03623
ΔE00 4.81
Scarlet
#BE0119
ΔE00 4.92
Brownish Red
#9E3623
ΔE00 5.12
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B3372F #2FABB3
analogous
#B32F69 #B3372F #B3792F
triadic
#B3372F #2FB337 #372FB3
tetradic
#B3372F #69B32F #2FABB3 #792FB3
square
#B3372F #69B32F #2FABB3 #792FB3
split-complementary
#B3372F #2FB379 #2F69B3
monochromatic
#521916 #832822 #B3372F #D1564F #DD857F
Accessibility & contrast
On white
5.99
#B3372F on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.50
#B3372F on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B3372F
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B3372F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B3372F | 1.00 | 5.99 | 3.50 | 5.99 |
| #FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.50 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5A522D
Deuteranopia (green-blind)
#796D2B
Tritanopia (blue-blind)
#C50E36
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #b3372f; /* rgb */ color: rgb(179, 55, 47); /* oklch */ color: oklch(51.9% 0.162 27.8);
Tailwind
colors: {
custom: {
50: '#d27568',
500: '#b3372f',
950: '#000000',
},
}SCSS
$custom: #b3372f; $custom-light: #d27568; $custom-dark: #000000;
JSON
{
"hex": "#b3372f",
"rgb": {
"r": 179,
"g": 55,
"b": 47
},
"hsl": {
"h": 3.636,
"s": 58.407,
"l": 44.314
},
"oklch": {
"l": 0.51935,
"c": 0.16164,
"h": 27.8
},
"luminance": 0.12521
}Semantic roles & 50–950 ramp
primary
#B3372F
secondary
#78C1C6
accent
#D8E246
background
#FEF7F6
surface
#FCEDEB
border
#D5C8C6
text
#160906
muted
#847B7A