#B23437#B23437
#B23437 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.6% C 0.162 H 23.7°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).
Color values
| HEX | #B23437 |
|---|---|
| RGB | rgb(178, 52, 55) |
| HSL | hsl(359, 55%, 45%) |
| HSV | hsv(359, 71%, 70%) |
| CMYK | cmyk(0%, 70.8%, 69.1%, 30.2%) |
| CIE-LAB | lab(41.53, 50.79, 28.05) |
| CIE-LCH | lch(41.53, 58.02, 28.91°) |
| OKLab | oklab(51.56% 0.1487 0.0652) |
| OKLCH | oklch(51.56% 0.162 23.7) |
| XYZ | xyz(20.2799, 12.1998, 4.9006) |
| Luminance | 0.1220 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 3.14
Brown
#A52A2A
ΔE00 3.85
Cardinal
#C41E3A
ΔE00 4.12
Lipstick Red
#C0022F
ΔE00 4.26
Firebrick
#B22222
ΔE00 4.53
Reddish
#C44240
ΔE00 5.19
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B23437 #34B2AF
analogous
#B23476 #B23437 #B27034
triadic
#B23437 #37B234 #3437B2
tetradic
#B23437 #76B234 #34B2AF #7034B2
square
#B23437 #76B234 #34B2AF #7034B2
split-complementary
#B23437 #34B270 #3476B2
monochromatic
#53181A #832628 #B23437 #CE5659 #DB8587
Accessibility & contrast
On white
6.11
#B23437 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.44
#B23437 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B23437
6.11:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B23437 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B23437 | 1.00 | 6.11 | 3.44 | 6.11 |
| #FFFFFF | 6.11 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.44 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.11 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#575136
Deuteranopia (green-blind)
#776C33
Tritanopia (blue-blind)
#C40936
Achromatopsia (no color)
#626262
Design tokens & code
CSS
--color: #b23437; /* rgb */ color: rgb(178, 52, 55); /* oklch */ color: oklch(51.6% 0.162 23.7);
Tailwind
colors: {
custom: {
50: '#d1746e',
500: '#b23437',
950: '#000000',
},
}SCSS
$custom: #b23437; $custom-light: #d1746e; $custom-dark: #000000;
JSON
{
"hex": "#b23437",
"rgb": {
"r": 178,
"g": 52,
"b": 55
},
"hsl": {
"h": 358.571,
"s": 54.783,
"l": 45.098
},
"oklch": {
"l": 0.51558,
"c": 0.16236,
"h": 23.7
},
"luminance": 0.12197
}Semantic roles & 50–950 ramp
primary
#B23437
secondary
#7DC5C3
accent
#DEDB4A
background
#FDF7F6
surface
#FBEDEB
border
#D4C8C6
text
#150907
muted
#837B7A