#B53D34#B53D34
#B53D34 is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.0% C 0.157 H 27.9°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).
Color values
| HEX | #B53D34 |
|---|---|
| RGB | rgb(181, 61, 52) |
| HSL | hsl(4, 55%, 46%) |
| HSV | hsv(4, 71%, 71%) |
| CMYK | cmyk(0%, 66.3%, 71.3%, 29%) |
| CIE-LAB | lab(43.38, 47.99, 32.15) |
| CIE-LCH | lch(43.38, 57.76, 33.82°) |
| OKLab | oklab(53.03% 0.1388 0.0736) |
| OKLCH | oklch(53.03% 0.157 27.9) |
| XYZ | xyz(21.3469, 13.4122, 4.7129) |
| Luminance | 0.1341 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 3.14
Reddish
#C44240
ΔE00 4.09
Firebrick
#B22222
ΔE00 4.58
Brown
#A52A2A
ΔE00 5.36
Brick
#A03623
ΔE00 5.68
Brownish Red
#9E3623
ΔE00 5.98
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B53D34 #34ACB5
analogous
#B5346B #B53D34 #B57D34
triadic
#B53D34 #34B53D #3D34B5
tetradic
#B53D34 #6BB534 #34ACB5 #7D34B5
square
#B53D34 #6BB534 #34ACB5 #7D34B5
split-complementary
#B53D34 #34B57D #346BB5
monochromatic
#561D19 #852D26 #B53D34 #CF6057 #DC8D87
Accessibility & contrast
On white
5.70
#B53D34 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.68
#B53D34 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B53D34
5.70:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B53D34 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B53D34 | 1.00 | 5.70 | 3.68 | 5.70 |
| #FFFFFF | 5.70 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.68 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.70 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5E5632
Deuteranopia (green-blind)
#7C7030
Tritanopia (blue-blind)
#C71D3C
Achromatopsia (no color)
#666666
Design tokens & code
CSS
--color: #b53d34; /* rgb */ color: rgb(181, 61, 52); /* oklch */ color: oklch(53.0% 0.157 27.9);
Tailwind
colors: {
custom: {
50: '#d3796c',
500: '#b53d34',
950: '#000000',
},
}SCSS
$custom: #b53d34; $custom-light: #d3796c; $custom-dark: #000000;
JSON
{
"hex": "#b53d34",
"rgb": {
"r": 181,
"g": 61,
"b": 52
},
"hsl": {
"h": 4.186,
"s": 55.365,
"l": 45.686
},
"oklch": {
"l": 0.53027,
"c": 0.15713,
"h": 27.9
},
"luminance": 0.13409
}Semantic roles & 50–950 ramp
primary
#B53D34
secondary
#7FC1C6
accent
#D4DF49
background
#FEF7F6
surface
#FCEEEB
border
#D5C9C6
text
#160907
muted
#847B7A