#B23A2F#B23A2F
#B23A2F is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.1% C 0.158 H 28.8°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).
Color values
| HEX | #B23A2F |
|---|---|
| RGB | rgb(178, 58, 47) |
| HSL | hsl(5, 58%, 44%) |
| HSV | hsv(5, 74%, 70%) |
| CMYK | cmyk(0%, 67.4%, 73.6%, 30.2%) |
| CIE-LAB | lab(42.31, 47.99, 33.68) |
| CIE-LCH | lch(42.31, 58.62, 35.06°) |
| OKLab | oklab(52.1% 0.1381 0.0761) |
| OKLCH | oklch(52.1% 0.158 28.8) |
| XYZ | xyz(20.3885, 12.6993, 4.0664) |
| Luminance | 0.1270 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Firebrick
#B22222
ΔE00 3.71
Dull Red
#BB3F3F
ΔE00 4.32
Brick
#A03623
ΔE00 4.51
Brown
#A52A2A
ΔE00 4.71
Brownish Red
#9E3623
ΔE00 4.83
Reddish
#C44240
ΔE00 5.31
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B23A2F #2FA7B2
analogous
#B22F66 #B23A2F #B27C2F
triadic
#B23A2F #2FB23A #3A2FB2
tetradic
#B23A2F #66B22F #2FA7B2 #7C2FB2
square
#B23A2F #66B22F #2FA7B2 #7C2FB2
split-complementary
#B23A2F #2FB27C #2F66B2
monochromatic
#511A15 #822A22 #B23A2F #D0594E #DD867E
Accessibility & contrast
On white
5.93
#B23A2F on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.54
#B23A2F on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B23A2F
5.93:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B23A2F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B23A2F | 1.00 | 5.93 | 3.54 | 5.93 |
| #FFFFFF | 5.93 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.54 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.93 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5C532D
Deuteranopia (green-blind)
#7A6E2B
Tritanopia (blue-blind)
#C41738
Achromatopsia (no color)
#646464
Design tokens & code
CSS
--color: #b23a2f; /* rgb */ color: rgb(178, 58, 47); /* oklch */ color: oklch(52.1% 0.158 28.8);
Tailwind
colors: {
custom: {
50: '#d17768',
500: '#b23a2f',
950: '#000000',
},
}SCSS
$custom: #b23a2f; $custom-light: #d17768; $custom-dark: #000000;
JSON
{
"hex": "#b23a2f",
"rgb": {
"r": 178,
"g": 58,
"b": 47
},
"hsl": {
"h": 5.038,
"s": 58.222,
"l": 44.118
},
"oklch": {
"l": 0.52103,
"c": 0.1577,
"h": 28.8
},
"luminance": 0.12696
}Semantic roles & 50–950 ramp
primary
#B23A2F
secondary
#77BFC6
accent
#D4E146
background
#FDF7F6
surface
#FBEDEB
border
#D4C8C6
text
#150906
muted
#837B7A