#B83637#B83637
#B83637 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.8% C 0.167 H 24.5°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).
Color values
| HEX | #B83637 |
|---|---|
| RGB | rgb(184, 54, 55) |
| HSL | hsl(360, 55%, 47%) |
| HSV | hsv(360, 71%, 72%) |
| CMYK | cmyk(0%, 70.7%, 70.1%, 27.8%) |
| CIE-LAB | lab(42.93, 51.97, 29.99) |
| CIE-LCH | lch(42.93, 60.00, 29.99°) |
| OKLab | oklab(52.8% 0.1517 0.0692) |
| OKLCH | oklch(52.8% 0.167 24.5) |
| XYZ | xyz(21.7783, 13.1077, 4.9970) |
| Luminance | 0.1310 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 2.09
Reddish
#C44240
ΔE00 3.84
Cardinal
#C41E3A
ΔE00 4.18
Firebrick
#B22222
ΔE00 4.64
Lipstick Red
#C0022F
ΔE00 4.64
Brown
#A52A2A
ΔE00 4.88
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B83637 #36B8B7
analogous
#B83678 #B83637 #B87636
triadic
#B83637 #37B836 #3637B8
tetradic
#B83637 #78B836 #36B8B7 #7636B8
square
#B83637 #78B836 #36B8B7 #7636B8
split-complementary
#B83637 #36B876 #3678B8
monochromatic
#591A1B #892829 #B83637 #CF5C5D #DD8B8C
Accessibility & contrast
On white
5.80
#B83637 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.62
#B83637 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B83637
5.80:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B83637 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B83637 | 1.00 | 5.80 | 3.62 | 5.80 |
| #FFFFFF | 5.80 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.62 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.80 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5B5436
Deuteranopia (green-blind)
#7B7033
Tritanopia (blue-blind)
#CA0838
Achromatopsia (no color)
#656565
Design tokens & code
CSS
--color: #b83637; /* rgb */ color: rgb(184, 54, 55); /* oklch */ color: oklch(52.8% 0.167 24.5);
Tailwind
colors: {
custom: {
50: '#d5766e',
500: '#b83637',
950: '#000000',
},
}SCSS
$custom: #b83637; $custom-light: #d5766e; $custom-dark: #000000;
JSON
{
"hex": "#b83637",
"rgb": {
"r": 184,
"g": 54,
"b": 55
},
"hsl": {
"h": 359.538,
"s": 54.622,
"l": 46.667
},
"oklch": {
"l": 0.52803,
"c": 0.16672,
"h": 24.5
},
"luminance": 0.13105
}Semantic roles & 50–950 ramp
primary
#B83637
secondary
#82C7C7
accent
#DEDD4A
background
#FEF7F6
surface
#FCEDEB
border
#D5C8C6
text
#160907
muted
#847B7A