#B53B2E#B53B2E
#B53B2E is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.7% C 0.160 H 29.5°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).
Color values
| HEX | #B53B2E |
|---|---|
| RGB | rgb(181, 59, 46) |
| HSL | hsl(6, 59%, 45%) |
| HSV | hsv(6, 75%, 71%) |
| CMYK | cmyk(0%, 67.4%, 74.6%, 29%) |
| CIE-LAB | lab(42.99, 48.55, 35.16) |
| CIE-LCH | lch(42.99, 59.95, 35.91°) |
| OKLab | oklab(52.71% 0.1394 0.0789) |
| OKLCH | oklch(52.71% 0.16 29.5) |
| XYZ | xyz(21.1155, 13.1520, 4.0110) |
| Luminance | 0.1315 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Firebrick
#B22222
ΔE00 4.16
Dull Red
#BB3F3F
ΔE00 4.54
Brick
#A03623
ΔE00 4.86
Reddish
#C44240
ΔE00 5.15
Brownish Red
#9E3623
ΔE00 5.21
Scarlet
#BE0119
ΔE00 5.42
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B53B2E #2EA8B5
analogous
#B52E65 #B53B2E #B57F2E
triadic
#B53B2E #2EB53B #3B2EB5
tetradic
#B53B2E #65B52E #2EA8B5 #7F2EB5
square
#B53B2E #65B52E #2EA8B5 #7F2EB5
split-complementary
#B53B2E #2EB57F #2E65B5
monochromatic
#531B15 #842B22 #B53B2E #D25B4E #DE887F
Accessibility & contrast
On white
5.79
#B53B2E on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.63
#B53B2E on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B53B2E
5.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B53B2E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B53B2E | 1.00 | 5.79 | 3.63 | 5.79 |
| #FFFFFF | 5.79 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.79 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5E552C
Deuteranopia (green-blind)
#7C6F2A
Tritanopia (blue-blind)
#C71739
Achromatopsia (no color)
#656565
Design tokens & code
CSS
--color: #b53b2e; /* rgb */ color: rgb(181, 59, 46); /* oklch */ color: oklch(52.7% 0.160 29.5);
Tailwind
colors: {
custom: {
50: '#d37867',
500: '#b53b2e',
950: '#000000',
},
}SCSS
$custom: #b53b2e; $custom-light: #d37867; $custom-dark: #000000;
JSON
{
"hex": "#b53b2e",
"rgb": {
"r": 181,
"g": 59,
"b": 46
},
"hsl": {
"h": 5.778,
"s": 59.471,
"l": 44.51
},
"oklch": {
"l": 0.52713,
"c": 0.16014,
"h": 29.5
},
"luminance": 0.13149
}Semantic roles & 50–950 ramp
primary
#B53B2E
secondary
#78C0C7
accent
#D3E345
background
#FEF7F6
surface
#FCEEEB
border
#D5C9C6
text
#160906
muted
#847B7A