#B23839#B23839
#B23839 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.0% C 0.158 H 24.1°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).
Color values
| HEX | #B23839 |
|---|---|
| RGB | rgb(178, 56, 57) |
| HSL | hsl(360, 52%, 46%) |
| HSV | hsv(360, 69%, 70%) |
| CMYK | cmyk(0%, 68.5%, 68%, 30.2%) |
| CIE-LAB | lab(42.14, 49.32, 27.59) |
| CIE-LCH | lch(42.14, 56.51, 29.22°) |
| OKLab | oklab(52.02% 0.1444 0.0645) |
| OKLCH | oklch(52.02% 0.158 24.1) |
| XYZ | xyz(20.5150, 12.5917, 5.2203) |
| Luminance | 0.1259 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 2.57
Brown
#A52A2A
ΔE00 4.31
Cardinal
#C41E3A
ΔE00 4.43
Reddish
#C44240
ΔE00 4.68
Lipstick Red
#C0022F
ΔE00 4.86
Firebrick
#B22222
ΔE00 4.91
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B23839 #38B2B1
analogous
#B23876 #B23839 #B27438
triadic
#B23839 #39B238 #3839B2
tetradic
#B23839 #76B238 #38B2B1 #7438B2
square
#B23839 #76B238 #38B2B1 #7438B2
split-complementary
#B23839 #38B274 #3876B2
monochromatic
#551B1B #83292A #B23839 #CC5C5D #DA8A8B
Accessibility & contrast
On white
5.97
#B23839 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.52
#B23839 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B23839
5.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B23839 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B23839 | 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)
#595338
Deuteranopia (green-blind)
#786D35
Tritanopia (blue-blind)
#C3163A
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #b23839; /* rgb */ color: rgb(178, 56, 57); /* oklch */ color: oklch(52.0% 0.158 24.1);
Tailwind
colors: {
custom: {
50: '#d0766f',
500: '#b23839',
950: '#000000',
},
}SCSS
$custom: #b23839; $custom-light: #d0766f; $custom-dark: #000000;
JSON
{
"hex": "#b23839",
"rgb": {
"r": 178,
"g": 56,
"b": 57
},
"hsl": {
"h": 359.508,
"s": 52.137,
"l": 45.882
},
"oklch": {
"l": 0.52023,
"c": 0.15817,
"h": 24.1
},
"luminance": 0.12589
}Semantic roles & 50–950 ramp
primary
#B23839
secondary
#81C5C4
accent
#DCDA4C
background
#FDF7F6
surface
#FBEDEC
border
#D4C8C7
text
#150907
muted
#837B7A