#B03143#B03143
#B03143 is a mid, vivid red. Relative luminance 0.118; OKLCH L 51.1% C 0.163 H 17.3°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).
Color values
| HEX | #B03143 |
|---|---|
| RGB | rgb(176, 49, 67) |
| HSL | hsl(351, 56%, 44%) |
| HSV | hsv(351, 72%, 69%) |
| CMYK | cmyk(0%, 72.2%, 61.9%, 31%) |
| CIE-LAB | lab(40.95, 52.00, 19.87) |
| CIE-LCH | lch(40.95, 55.67, 20.91°) |
| OKLab | oklab(51.12% 0.1552 0.0482) |
| OKLCH | oklch(51.12% 0.163 17.3) |
| XYZ | xyz(20.0180, 11.8349, 6.5394) |
| Luminance | 0.1183 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Rose Red
#BE013C
ΔE00 3.81
Rouge
#AB1239
ΔE00 4.15
Cardinal
#C41E3A
ΔE00 4.36
Ruby
#CA0147
ΔE00 5.13
Dusty Red
#B9484E
ΔE00 5.45
Lipstick Red
#C0022F
ΔE00 5.47
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B03143 #31B09E
analogous
#B03183 #B03143 #B05F31
triadic
#B03143 #43B031 #3143B0
tetradic
#B03143 #83B031 #31B09E #5F31B0
square
#B03143 #83B031 #31B09E #5F31B0
split-complementary
#B03143 #31B05F #3183B0
monochromatic
#50161F #802431 #B03143 #CE5062 #DC808D
Accessibility & contrast
On white
6.24
#B03143 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.37
#B03143 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B03143
6.24:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B03143 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B03143 | 1.00 | 6.24 | 3.37 | 6.24 |
| #FFFFFF | 6.24 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.37 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.24 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#535043
Deuteranopia (green-blind)
#746A40
Tritanopia (blue-blind)
#C10939
Achromatopsia (no color)
#616161
Design tokens & code
CSS
--color: #b03143; /* rgb */ color: rgb(176, 49, 67); /* oklch */ color: oklch(51.1% 0.163 17.3);
Tailwind
colors: {
custom: {
50: '#ce7377',
500: '#b03143',
950: '#000000',
},
}SCSS
$custom: #b03143; $custom-light: #ce7377; $custom-dark: #000000;
JSON
{
"hex": "#b03143",
"rgb": {
"r": 176,
"g": 49,
"b": 67
},
"hsl": {
"h": 351.496,
"s": 56.444,
"l": 44.118
},
"oklch": {
"l": 0.51124,
"c": 0.16254,
"h": 17.3
},
"luminance": 0.11832
}Semantic roles & 50–950 ramp
primary
#B03143
secondary
#78C5BA
accent
#E0CA48
background
#FDF7F7
surface
#FBEDED
border
#D4C8C8
text
#150908
muted
#837B7B