#B73135#B73135
#B73135 is a mid, vivid red. Relative luminance 0.125; OKLCH L 52.1% C 0.171 H 23.9°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #B73135 |
|---|---|
| RGB | rgb(183, 49, 53) |
| HSL | hsl(358, 58%, 45%) |
| HSV | hsv(358, 73%, 72%) |
| CMYK | cmyk(0%, 73.2%, 71%, 28.2%) |
| CIE-LAB | lab(42.04, 53.41, 30.08) |
| CIE-LCH | lch(42.04, 61.30, 29.39°) |
| OKLab | oklab(52.1% 0.1559 0.0691) |
| OKLCH | oklch(52.1% 0.171 23.9) |
| XYZ | xyz(21.2717, 12.5242, 4.6648) |
| Luminance | 0.1252 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 2.91
Cardinal
#C41E3A
ΔE00 3.74
Lipstick Red
#C0022F
ΔE00 3.84
Firebrick
#B22222
ΔE00 4.20
Brown
#A52A2A
ΔE00 4.25
Cherry (survey)
#CF0234
ΔE00 4.64
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B73135 #31B7B3
analogous
#B73178 #B73135 #B77031
triadic
#B73135 #35B731 #3135B7
tetradic
#B73135 #78B731 #31B7B3 #7031B7
square
#B73135 #78B731 #31B7B3 #7031B7
split-complementary
#B73135 #31B770 #3178B7
monochromatic
#561719 #872427 #B73135 #D15458 #DE8487
Accessibility & contrast
On white
5.99
#B73135 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.50
#B73135 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B73135
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B73135 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B73135 | 1.00 | 5.99 | 3.50 | 5.99 |
| #FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.50 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#585134
Deuteranopia (green-blind)
#796E31
Tritanopia (blue-blind)
#C90034
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #b73135; /* rgb */ color: rgb(183, 49, 53); /* oklch */ color: oklch(52.1% 0.171 23.9);
Tailwind
colors: {
custom: {
50: '#d5736c',
500: '#b73135',
950: '#000000',
},
}SCSS
$custom: #b73135; $custom-light: #d5736c; $custom-dark: #000000;
JSON
{
"hex": "#b73135",
"rgb": {
"r": 183,
"g": 49,
"b": 53
},
"hsl": {
"h": 358.209,
"s": 57.759,
"l": 45.49
},
"oklch": {
"l": 0.52097,
"c": 0.17055,
"h": 23.9
},
"luminance": 0.12521
}Semantic roles & 50–950 ramp
primary
#B73135
secondary
#7CC8C5
accent
#E1DC47
background
#FEF7F6
surface
#FCEDEB
border
#D5C8C6
text
#160907
muted
#847B7A