#B63B2A#B63B2A
#B63B2A is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.8% C 0.162 H 30.9°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).
Color values
| HEX | #B63B2A |
|---|---|
| RGB | rgb(182, 59, 42) |
| HSL | hsl(7, 63%, 44%) |
| HSV | hsv(7, 77%, 71%) |
| CMYK | cmyk(0%, 67.6%, 76.9%, 28.6%) |
| CIE-LAB | lab(43.13, 48.73, 37.60) |
| CIE-LCH | lch(43.13, 61.55, 37.65°) |
| OKLab | oklab(52.84% 0.139 0.0831) |
| OKLCH | oklch(52.84% 0.162 30.9) |
| XYZ | xyz(21.2757, 13.2433, 3.6260) |
| Luminance | 0.1324 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Firebrick
#B22222
ΔE00 4.58
Brick
#A03623
ΔE00 4.75
Brownish Red
#9E3623
ΔE00 5.14
Rusty Red
#AF2F0D
ΔE00 5.33
Scarlet
#BE0119
ΔE00 5.54
Dull Red
#BB3F3F
ΔE00 5.61
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B63B2A #2AA5B6
analogous
#B62A5F #B63B2A #B6812A
triadic
#B63B2A #2AB63B #3B2AB6
tetradic
#B63B2A #5FB62A #2AA5B6 #812AB6
square
#B63B2A #5FB62A #2AA5B6 #812AB6
split-complementary
#B63B2A #2AB681 #2A5FB6
monochromatic
#531B13 #842B1F #B63B2A #D55948 #E0867A
Accessibility & contrast
On white
5.76
#B63B2A on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.65
#B63B2A on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B63B2A
5.76:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B63B2A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B63B2A | 1.00 | 5.76 | 3.65 | 5.76 |
| #FFFFFF | 5.76 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.65 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.76 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5E5527
Deuteranopia (green-blind)
#7D7025
Tritanopia (blue-blind)
#C81538
Achromatopsia (no color)
#666666
Design tokens & code
CSS
--color: #b63b2a; /* rgb */ color: rgb(182, 59, 42); /* oklch */ color: oklch(52.8% 0.162 30.9);
Tailwind
colors: {
custom: {
50: '#d47865',
500: '#b63b2a',
950: '#000000',
},
}SCSS
$custom: #b63b2a; $custom-light: #d47865; $custom-dark: #000000;
JSON
{
"hex": "#b63b2a",
"rgb": {
"r": 182,
"g": 59,
"b": 42
},
"hsl": {
"h": 7.286,
"s": 62.5,
"l": 43.922
},
"oklch": {
"l": 0.52835,
"c": 0.16194,
"h": 30.9
},
"luminance": 0.1324
}Semantic roles & 50–950 ramp
primary
#B63B2A
secondary
#73BEC8
accent
#D2E642
background
#FEF7F6
surface
#FCEEEB
border
#D5C9C6
text
#160905
muted
#847B7A