#B63A2A#B63A2A
#B63A2A is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.7% C 0.163 H 30.5°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).
Color values
| HEX | #B63A2A |
|---|---|
| RGB | rgb(182, 58, 42) |
| HSL | hsl(7, 63%, 44%) |
| HSV | hsv(7, 77%, 71%) |
| CMYK | cmyk(0%, 68.1%, 76.9%, 28.6%) |
| CIE-LAB | lab(42.98, 49.14, 37.44) |
| CIE-LCH | lch(42.98, 61.78, 37.30°) |
| OKLab | oklab(52.72% 0.1403 0.0828) |
| OKLCH | oklch(52.72% 0.163 30.5) |
| XYZ | xyz(21.2248, 13.1415, 3.6090) |
| Luminance | 0.1314 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Firebrick
#B22222
ΔE00 4.33
Brick
#A03623
ΔE00 4.70
Brownish Red
#9E3623
ΔE00 5.08
Scarlet
#BE0119
ΔE00 5.33
Rusty Red
#AF2F0D
ΔE00 5.42
Dull Red
#BB3F3F
ΔE00 5.47
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B63A2A #2AA6B6
analogous
#B62A60 #B63A2A #B6802A
triadic
#B63A2A #2AB63A #3A2AB6
tetradic
#B63A2A #60B62A #2AA6B6 #802AB6
square
#B63A2A #60B62A #2AA6B6 #802AB6
split-complementary
#B63A2A #2AB680 #2A60B6
monochromatic
#531A13 #842A1F #B63A2A #D55848 #E0867A
Accessibility & contrast
On white
5.79
#B63A2A on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.63
#B63A2A on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B63A2A
5.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B63A2A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B63A2A | 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)
#5E5427
Deuteranopia (green-blind)
#7C7025
Tritanopia (blue-blind)
#C81237
Achromatopsia (no color)
#656565
Design tokens & code
CSS
--color: #b63a2a; /* rgb */ color: rgb(182, 58, 42); /* oklch */ color: oklch(52.7% 0.163 30.5);
Tailwind
colors: {
custom: {
50: '#d47765',
500: '#b63a2a',
950: '#000000',
},
}SCSS
$custom: #b63a2a; $custom-light: #d47765; $custom-dark: #000000;
JSON
{
"hex": "#b63a2a",
"rgb": {
"r": 182,
"g": 58,
"b": 42
},
"hsl": {
"h": 6.857,
"s": 62.5,
"l": 43.922
},
"oklch": {
"l": 0.52721,
"c": 0.16287,
"h": 30.5
},
"luminance": 0.13138
}Semantic roles & 50–950 ramp
primary
#B63A2A
secondary
#73BFC8
accent
#D3E642
background
#FEF7F6
surface
#FCEEEB
border
#D5C9C6
text
#160905
muted
#847B7A