#B23838#B23838
#B23838 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.0% C 0.158 H 24.5°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).
Color values
| HEX | #B23838 |
|---|---|
| RGB | rgb(178, 56, 56) |
| HSL | hsl(0, 52%, 46%) |
| HSV | hsv(0, 69%, 70%) |
| CMYK | cmyk(0%, 68.5%, 68.5%, 30.2%) |
| CIE-LAB | lab(42.13, 49.26, 28.17) |
| CIE-LCH | lch(42.13, 56.75, 29.76°) |
| OKLab | oklab(52.01% 0.144 0.0656) |
| OKLCH | oklch(52.01% 0.158 24.5) |
| XYZ | xyz(20.4902, 12.5818, 5.0902) |
| Luminance | 0.1258 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 2.61
Brown
#A52A2A
ΔE00 4.20
Cardinal
#C41E3A
ΔE00 4.62
Reddish
#C44240
ΔE00 4.65
Firebrick
#B22222
ΔE00 4.67
Lipstick Red
#C0022F
ΔE00 4.94
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B23838 #38B2B2
analogous
#B23875 #B23838 #B27538
triadic
#B23838 #38B238 #3838B2
tetradic
#B23838 #75B238 #38B2B2 #7538B2
square
#B23838 #75B238 #38B2B2 #7538B2
split-complementary
#B23838 #38B275 #3875B2
monochromatic
#551B1B #832929 #B23838 #CC5C5C #DA8A8A
Accessibility & contrast
On white
5.97
#B23838 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.52
#B23838 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B23838
5.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B23838 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B23838 | 1.00 | 5.97 | 3.52 | 5.97 |
| #FFFFFF | 5.97 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.52 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.97 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5A5337
Deuteranopia (green-blind)
#786D34
Tritanopia (blue-blind)
#C31539
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #b23838; /* rgb */ color: rgb(178, 56, 56); /* oklch */ color: oklch(52.0% 0.158 24.5);
Tailwind
colors: {
custom: {
50: '#d0766e',
500: '#b23838',
950: '#000000',
},
}SCSS
$custom: #b23838; $custom-light: #d0766e; $custom-dark: #000000;
JSON
{
"hex": "#b23838",
"rgb": {
"r": 178,
"g": 56,
"b": 56
},
"hsl": {
"h": 0,
"s": 52.137,
"l": 45.882
},
"oklch": {
"l": 0.52007,
"c": 0.15829,
"h": 24.5
},
"luminance": 0.12579
}Semantic roles & 50–950 ramp
primary
#B23838
secondary
#81C5C5
accent
#DCDC4C
background
#FDF7F6
surface
#FBEDEC
border
#D4C8C7
text
#150907
muted
#837B7A