#B53528#B53528
#B53528 is a mid, vivid red. Relative luminance 0.125; OKLCH L 52.0% C 0.167 H 29.6°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #B53528 |
|---|---|
| RGB | rgb(181, 53, 40) |
| HSL | hsl(6, 64%, 43%) |
| HSV | hsv(6, 78%, 71%) |
| CMYK | cmyk(0%, 70.7%, 77.9%, 29%) |
| CIE-LAB | lab(42.04, 50.72, 37.50) |
| CIE-LCH | lch(42.04, 63.08, 36.48°) |
| OKLab | oklab(51.98% 0.1449 0.0824) |
| OKLCH | oklch(51.98% 0.167 29.6) |
| XYZ | xyz(20.7146, 12.5263, 3.3342) |
| Luminance | 0.1252 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Firebrick
#B22222
ΔE00 3.27
Brick
#A03623
ΔE00 4.31
Scarlet
#BE0119
ΔE00 4.41
Brownish Red
#9E3623
ΔE00 4.69
Brown
#A52A2A
ΔE00 5.16
Rusty Red
#AF2F0D
ΔE00 5.42
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B53528 #28A8B5
analogous
#B52861 #B53528 #B57B28
triadic
#B53528 #28B535 #3528B5
tetradic
#B53528 #61B528 #28A8B5 #7B28B5
square
#B53528 #61B528 #28A8B5 #7B28B5
split-complementary
#B53528 #28B57B #2861B5
monochromatic
#511812 #83261D #B53528 #D65244 #E18077
Accessibility & contrast
On white
5.99
#B53528 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.50
#B53528 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B53528
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B53528 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B53528 | 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)
#5B5125
Deuteranopia (green-blind)
#7A6D23
Tritanopia (blue-blind)
#C70033
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #b53528; /* rgb */ color: rgb(181, 53, 40); /* oklch */ color: oklch(52.0% 0.167 29.6);
Tailwind
colors: {
custom: {
50: '#d47563',
500: '#b53528',
950: '#000000',
},
}SCSS
$custom: #b53528; $custom-light: #d47563; $custom-dark: #000000;
JSON
{
"hex": "#b53528",
"rgb": {
"r": 181,
"g": 53,
"b": 40
},
"hsl": {
"h": 5.532,
"s": 63.801,
"l": 43.333
},
"oklch": {
"l": 0.5198,
"c": 0.16672,
"h": 29.6
},
"luminance": 0.12523
}Semantic roles & 50–950 ramp
primary
#B53528
secondary
#70C0C8
accent
#D8E741
background
#FEF7F5
surface
#FCEDEA
border
#D5C8C6
text
#160905
muted
#847B79