#B7372D#B7372D
#B7372D is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.6% C 0.166 H 28.5°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).
Color values
| HEX | #B7372D |
|---|---|
| RGB | rgb(183, 55, 45) |
| HSL | hsl(4, 61%, 45%) |
| HSV | hsv(4, 75%, 72%) |
| CMYK | cmyk(0%, 69.9%, 75.4%, 28.2%) |
| CIE-LAB | lab(42.75, 50.80, 35.57) |
| CIE-LCH | lch(42.75, 62.01, 35.00°) |
| OKLab | oklab(52.6% 0.146 0.0794) |
| OKLCH | oklch(52.6% 0.166 28.5) |
| XYZ | xyz(21.3707, 12.9923, 3.8646) |
| Luminance | 0.1299 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Firebrick
#B22222
ΔE00 3.59
Dull Red
#BB3F3F
ΔE00 4.32
Scarlet
#BE0119
ΔE00 4.76
Reddish
#C44240
ΔE00 5.01
Brick
#A03623
ΔE00 5.13
Brown
#A52A2A
ΔE00 5.17
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B7372D #2DADB7
analogous
#B72D68 #B7372D #B77C2D
triadic
#B7372D #2DB737 #372DB7
tetradic
#B7372D #68B72D #2DADB7 #7C2DB7
square
#B7372D #68B72D #2DADB7 #7C2DB7
split-complementary
#B7372D #2DB77C #2D68B7
monochromatic
#551915 #862821 #B7372D #D3574E #DF867F
Accessibility & contrast
On white
5.84
#B7372D on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.60
#B7372D on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B7372D
5.84:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B7372D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B7372D | 1.00 | 5.84 | 3.60 | 5.84 |
| #FFFFFF | 5.84 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.60 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.84 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5C532B
Deuteranopia (green-blind)
#7C6F28
Tritanopia (blue-blind)
#C90836
Achromatopsia (no color)
#656565
Design tokens & code
CSS
--color: #b7372d; /* rgb */ color: rgb(183, 55, 45); /* oklch */ color: oklch(52.6% 0.166 28.5);
Tailwind
colors: {
custom: {
50: '#d57667',
500: '#b7372d',
950: '#000000',
},
}SCSS
$custom: #b7372d; $custom-light: #d57667; $custom-dark: #000000;
JSON
{
"hex": "#b7372d",
"rgb": {
"r": 183,
"g": 55,
"b": 45
},
"hsl": {
"h": 4.348,
"s": 60.526,
"l": 44.706
},
"oklch": {
"l": 0.52597,
"c": 0.16617,
"h": 28.5
},
"luminance": 0.12989
}Semantic roles & 50–950 ramp
primary
#B7372D
secondary
#78C2C8
accent
#D8E444
background
#FEF7F6
surface
#FCEDEB
border
#D5C8C6
text
#160906
muted
#847B7A