#B23F24#B23F24
#B23F24 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.6% C 0.155 H 34.5°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).
Color values
| HEX | #B23F24 |
|---|---|
| RGB | rgb(178, 63, 36) |
| HSL | hsl(11, 66%, 42%) |
| HSV | hsv(11, 80%, 70%) |
| CMYK | cmyk(0%, 64.6%, 79.8%, 30.2%) |
| CIE-LAB | lab(42.99, 45.39, 40.44) |
| CIE-LCH | lch(42.99, 60.79, 41.70°) |
| OKLab | oklab(52.58% 0.1279 0.0878) |
| OKLCH | oklch(52.58% 0.155 34.5) |
| XYZ | xyz(20.4583, 13.1503, 3.1297) |
| Luminance | 0.1315 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Rusty Red
#AF2F0D
ΔE00 3.78
Brick
#A03623
ΔE00 4.69
Rust
#B7410E
ΔE00 4.93
Brownish Red
#9E3623
ΔE00 5.04
Rust Red
#AA2704
ΔE00 5.42
Rust (survey)
#A83C09
ΔE00 5.50
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B23F24 #2497B2
analogous
#B22450 #B23F24 #B28624
triadic
#B23F24 #24B23F #3F24B2
tetradic
#B23F24 #50B224 #2497B2 #8624B2
square
#B23F24 #50B224 #2497B2 #8624B2
split-complementary
#B23F24 #24B286 #2450B2
monochromatic
#4C1B0F #7F2D1A #B23F24 #D8593C #E2856F
Accessibility & contrast
On white
5.79
#B23F24 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.63
#B23F24 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B23F24
5.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B23F24 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B23F24 | 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)
#605520
Deuteranopia (green-blind)
#7C6F1F
Tritanopia (blue-blind)
#C41F3A
Achromatopsia (no color)
#656565
Design tokens & code
CSS
--color: #b23f24; /* rgb */ color: rgb(178, 63, 36); /* oklch */ color: oklch(52.6% 0.155 34.5);
Tailwind
colors: {
custom: {
50: '#d17961',
500: '#b23f24',
950: '#000000',
},
}SCSS
$custom: #b23f24; $custom-light: #d17961; $custom-dark: #000000;
JSON
{
"hex": "#b23f24",
"rgb": {
"r": 178,
"g": 63,
"b": 36
},
"hsl": {
"h": 11.408,
"s": 66.355,
"l": 41.961
},
"oklch": {
"l": 0.52578,
"c": 0.15514,
"h": 34.5
},
"luminance": 0.13147
}Semantic roles & 50–950 ramp
primary
#B23F24
secondary
#69B6C8
accent
#C9E93F
background
#FEF7F5
surface
#FCEEEA
border
#D5C9C6
text
#160905
muted
#847B79