#B53B2A#B53B2A
#B53B2A is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.7% C 0.161 H 30.9°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).
Color values
| HEX | #B53B2A |
|---|---|
| RGB | rgb(181, 59, 42) |
| HSL | hsl(7, 62%, 44%) |
| HSV | hsv(7, 77%, 71%) |
| CMYK | cmyk(0%, 67.4%, 76.8%, 29%) |
| CIE-LAB | lab(42.95, 48.38, 37.35) |
| CIE-LCH | lch(42.95, 61.13, 37.67°) |
| OKLab | oklab(52.66% 0.138 0.0826) |
| OKLCH | oklch(52.66% 0.161 30.9) |
| XYZ | xyz(21.0403, 13.1220, 3.6149) |
| Luminance | 0.1312 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Firebrick
#B22222
ΔE00 4.49
Brick
#A03623
ΔE00 4.56
Brownish Red
#9E3623
ΔE00 4.94
Rusty Red
#AF2F0D
ΔE00 5.27
Scarlet
#BE0119
ΔE00 5.53
Dull Red
#BB3F3F
ΔE00 5.64
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B53B2A #2AA4B5
analogous
#B52A5E #B53B2A #B5802A
triadic
#B53B2A #2AB53B #3B2AB5
tetradic
#B53B2A #5EB52A #2AA4B5 #802AB5
square
#B53B2A #5EB52A #2AA4B5 #802AB5
split-complementary
#B53B2A #2AB580 #2A5EB5
monochromatic
#521B13 #832B1E #B53B2A #D45948 #E08679
Accessibility & contrast
On white
5.80
#B53B2A on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.62
#B53B2A on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B53B2A
5.80:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B53B2A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B53B2A | 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)
#5E5427
Deuteranopia (green-blind)
#7C6F25
Tritanopia (blue-blind)
#C71638
Achromatopsia (no color)
#656565
Design tokens & code
CSS
--color: #b53b2a; /* rgb */ color: rgb(181, 59, 42); /* oklch */ color: oklch(52.7% 0.161 30.9);
Tailwind
colors: {
custom: {
50: '#d37865',
500: '#b53b2a',
950: '#000000',
},
}SCSS
$custom: #b53b2a; $custom-light: #d37865; $custom-dark: #000000;
JSON
{
"hex": "#b53b2a",
"rgb": {
"r": 181,
"g": 59,
"b": 42
},
"hsl": {
"h": 7.338,
"s": 62.332,
"l": 43.725
},
"oklch": {
"l": 0.52665,
"c": 0.16087,
"h": 30.9
},
"luminance": 0.13119
}Semantic roles & 50–950 ramp
primary
#B53B2A
secondary
#73BEC8
accent
#D1E542
background
#FEF7F6
surface
#FCEEEB
border
#D5C9C6
text
#160905
muted
#847B7A