#B53529#B53529
#B53529 is a mid, vivid red. Relative luminance 0.125; OKLCH L 52.0% C 0.167 H 29.3°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #B53529 |
|---|---|
| RGB | rgb(181, 53, 41) |
| HSL | hsl(5, 63%, 44%) |
| HSV | hsv(5, 77%, 71%) |
| CMYK | cmyk(0%, 70.7%, 77.3%, 29%) |
| CIE-LAB | lab(42.05, 50.76, 36.95) |
| CIE-LCH | lch(42.05, 62.79, 36.06°) |
| OKLab | oklab(51.99% 0.1453 0.0815) |
| OKLCH | oklch(51.99% 0.167 29.3) |
| XYZ | xyz(20.7318, 12.5332, 3.4249) |
| Luminance | 0.1253 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Firebrick
#B22222
ΔE00 3.17
Scarlet
#BE0119
ΔE00 4.39
Brick
#A03623
ΔE00 4.40
Brownish Red
#9E3623
ΔE00 4.77
Brown
#A52A2A
ΔE00 5.00
Dull Red
#BB3F3F
ΔE00 5.24
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B53529 #29A9B5
analogous
#B52963 #B53529 #B57B29
triadic
#B53529 #29B535 #3529B5
tetradic
#B53529 #63B529 #29A9B5 #7B29B5
square
#B53529 #63B529 #29A9B5 #7B29B5
split-complementary
#B53529 #29B57B #2963B5
monochromatic
#511812 #83261E #B53529 #D55246 #E08178
Accessibility & contrast
On white
5.99
#B53529 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.51
#B53529 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B53529
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B53529 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B53529 | 1.00 | 5.99 | 3.51 | 5.99 |
| #FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.51 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5A5126
Deuteranopia (green-blind)
#7A6D24
Tritanopia (blue-blind)
#C70133
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #b53529; /* rgb */ color: rgb(181, 53, 41); /* oklch */ color: oklch(52.0% 0.167 29.3);
Tailwind
colors: {
custom: {
50: '#d47564',
500: '#b53529',
950: '#000000',
},
}SCSS
$custom: #b53529; $custom-light: #d47564; $custom-dark: #000000;
JSON
{
"hex": "#b53529",
"rgb": {
"r": 181,
"g": 53,
"b": 41
},
"hsl": {
"h": 5.143,
"s": 63.063,
"l": 43.529
},
"oklch": {
"l": 0.51991,
"c": 0.16655,
"h": 29.3
},
"luminance": 0.1253
}Semantic roles & 50–950 ramp
primary
#B53529
secondary
#72C1C8
accent
#D8E642
background
#FEF7F6
surface
#FCEDEB
border
#D5C8C6
text
#160905
muted
#847B7A