#B53834#B53834
#B53834 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.5% C 0.162 H 26.2°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).
Color values
| HEX | #B53834 |
|---|---|
| RGB | rgb(181, 56, 52) |
| HSL | hsl(2, 55%, 46%) |
| HSV | hsv(2, 71%, 71%) |
| CMYK | cmyk(0%, 69.1%, 71.3%, 29%) |
| CIE-LAB | lab(42.62, 50.06, 31.27) |
| CIE-LCH | lch(42.62, 59.02, 31.99°) |
| OKLab | oklab(52.46% 0.1453 0.0717) |
| OKLCH | oklch(52.46% 0.162 26.2) |
| XYZ | xyz(21.0924, 12.9031, 4.6281) |
| Luminance | 0.1290 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 2.78
Firebrick
#B22222
ΔE00 4.00
Reddish
#C44240
ΔE00 4.26
Brown
#A52A2A
ΔE00 4.49
Cardinal
#C41E3A
ΔE00 5.38
Lipstick Red
#C0022F
ΔE00 5.46
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B53834 #34B1B5
analogous
#B53471 #B53834 #B57834
triadic
#B53834 #34B538 #3834B5
tetradic
#B53834 #71B534 #34B1B5 #7834B5
square
#B53834 #71B534 #34B1B5 #7834B5
split-complementary
#B53834 #34B578 #3471B5
monochromatic
#561B19 #852926 #B53834 #CF5B57 #DC8A87
Accessibility & contrast
On white
5.87
#B53834 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.58
#B53834 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B53834
5.87:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B53834 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B53834 | 1.00 | 5.87 | 3.58 | 5.87 |
| #FFFFFF | 5.87 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.58 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.87 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5B5332
Deuteranopia (green-blind)
#7A6F30
Tritanopia (blue-blind)
#C71138
Achromatopsia (no color)
#656565
Design tokens & code
CSS
--color: #b53834; /* rgb */ color: rgb(181, 56, 52); /* oklch */ color: oklch(52.5% 0.162 26.2);
Tailwind
colors: {
custom: {
50: '#d3766c',
500: '#b53834',
950: '#000000',
},
}SCSS
$custom: #b53834; $custom-light: #d3766c; $custom-dark: #000000;
JSON
{
"hex": "#b53834",
"rgb": {
"r": 181,
"g": 56,
"b": 52
},
"hsl": {
"h": 1.86,
"s": 55.365,
"l": 45.686
},
"oklch": {
"l": 0.52457,
"c": 0.16203,
"h": 26.2
},
"luminance": 0.129
}Semantic roles & 50–950 ramp
primary
#B53834
secondary
#7FC4C6
accent
#DADF49
background
#FEF7F6
surface
#FCEDEB
border
#D5C8C6
text
#160907
muted
#847B7A