#B83A37#B83A37
#B83A37 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.2% C 0.163 H 25.7°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).
Color values
| HEX | #B83A37 |
|---|---|
| RGB | rgb(184, 58, 55) |
| HSL | hsl(1, 54%, 47%) |
| HSV | hsv(1, 70%, 72%) |
| CMYK | cmyk(0%, 68.5%, 70.1%, 27.8%) |
| CIE-LAB | lab(43.50, 50.40, 30.67) |
| CIE-LCH | lch(43.50, 59.00, 31.33°) |
| OKLab | oklab(53.23% 0.1467 0.0707) |
| OKLCH | oklch(53.23% 0.163 25.7) |
| XYZ | xyz(21.9722, 13.4955, 5.0616) |
| Luminance | 0.1349 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 1.93
Reddish
#C44240
ΔE00 3.38
Firebrick
#B22222
ΔE00 4.79
Cardinal
#C41E3A
ΔE00 5.07
Brown
#A52A2A
ΔE00 5.30
Dusty Red
#B9484E
ΔE00 5.52
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B83A37 #37B5B8
analogous
#B83775 #B83A37 #B87A37
triadic
#B83A37 #37B83A #3A37B8
tetradic
#B83A37 #75B837 #37B5B8 #7A37B8
square
#B83A37 #75B837 #37B5B8 #7A37B8
split-complementary
#B83A37 #37B87A #3775B8
monochromatic
#5A1C1B #892B29 #B83A37 #CF605D #DD8E8D
Accessibility & contrast
On white
5.68
#B83A37 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.70
#B83A37 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B83A37
5.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B83A37 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B83A37 | 1.00 | 5.68 | 3.70 | 5.68 |
| #FFFFFF | 5.68 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.70 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.68 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5D5536
Deuteranopia (green-blind)
#7D7133
Tritanopia (blue-blind)
#CA153B
Achromatopsia (no color)
#676767
Design tokens & code
CSS
--color: #b83a37; /* rgb */ color: rgb(184, 58, 55); /* oklch */ color: oklch(53.2% 0.163 25.7);
Tailwind
colors: {
custom: {
50: '#d5786e',
500: '#b83a37',
950: '#000000',
},
}SCSS
$custom: #b83a37; $custom-light: #d5786e; $custom-dark: #000000;
JSON
{
"hex": "#b83a37",
"rgb": {
"r": 184,
"g": 58,
"b": 55
},
"hsl": {
"h": 1.395,
"s": 53.975,
"l": 46.863
},
"oklch": {
"l": 0.53233,
"c": 0.16285,
"h": 25.7
},
"luminance": 0.13492
}Semantic roles & 50–950 ramp
primary
#B83A37
secondary
#84C6C7
accent
#DADD4A
background
#FEF7F6
surface
#FCEEEB
border
#D5C9C6
text
#160907
muted
#847B7A