#B53E25#B53E25
#B53E25 is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.0% C 0.159 H 33.6°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).
Color values
| HEX | #B53E25 |
|---|---|
| RGB | rgb(181, 62, 37) |
| HSL | hsl(10, 66%, 43%) |
| HSV | hsv(10, 80%, 71%) |
| CMYK | cmyk(0%, 65.7%, 79.6%, 29%) |
| CIE-LAB | lab(43.37, 46.92, 40.47) |
| CIE-LCH | lch(43.37, 61.97, 40.78°) |
| OKLab | oklab(52.97% 0.1325 0.088) |
| OKLCH | oklch(52.97% 0.159 33.6) |
| XYZ | xyz(21.1150, 13.4057, 3.2256) |
| Luminance | 0.1340 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Rusty Red
#AF2F0D
ΔE00 4.13
Brick
#A03623
ΔE00 4.97
Brownish Red
#9E3623
ΔE00 5.34
Rust
#B7410E
ΔE00 5.35
Rust Red
#AA2704
ΔE00 5.77
Firebrick
#B22222
ΔE00 6.06
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B53E25 #259CB5
analogous
#B52554 #B53E25 #B58625
triadic
#B53E25 #25B53E #3E25B5
tetradic
#B53E25 #54B525 #259CB5 #8625B5
square
#B53E25 #54B525 #259CB5 #8625B5
split-complementary
#B53E25 #25B586 #2554B5
monochromatic
#4F1B10 #822D1B #B53E25 #D85A3F #E28672
Accessibility & contrast
On white
5.71
#B53E25 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.68
#B53E25 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B53E25
5.71:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B53E25 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B53E25 | 1.00 | 5.71 | 3.68 | 5.71 |
| #FFFFFF | 5.71 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.68 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.71 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#605621
Deuteranopia (green-blind)
#7E7020
Tritanopia (blue-blind)
#C71C39
Achromatopsia (no color)
#666666
Design tokens & code
CSS
--color: #b53e25; /* rgb */ color: rgb(181, 62, 37); /* oklch */ color: oklch(53.0% 0.159 33.6);
Tailwind
colors: {
custom: {
50: '#d47961',
500: '#b53e25',
950: '#000000',
},
}SCSS
$custom: #b53e25; $custom-light: #d47961; $custom-dark: #000000;
JSON
{
"hex": "#b53e25",
"rgb": {
"r": 181,
"g": 62,
"b": 37
},
"hsl": {
"h": 10.417,
"s": 66.055,
"l": 42.745
},
"oklch": {
"l": 0.52966,
"c": 0.15907,
"h": 33.6
},
"luminance": 0.13403
}Semantic roles & 50–950 ramp
primary
#B53E25
secondary
#6DB9C9
accent
#CBE93F
background
#FEF7F5
surface
#FCEEEA
border
#D5C9C6
text
#160905
muted
#847B79