#B63525#B63525
#B63525 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.1% C 0.168 H 30.5°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).
Color values
| HEX | #B63525 |
|---|---|
| RGB | rgb(182, 53, 37) |
| HSL | hsl(7, 66%, 43%) |
| HSV | hsv(7, 80%, 71%) |
| CMYK | cmyk(0%, 70.9%, 79.7%, 28.6%) |
| CIE-LAB | lab(42.20, 50.94, 39.36) |
| CIE-LCH | lch(42.20, 64.38, 37.69°) |
| OKLab | oklab(52.12% 0.1449 0.0855) |
| OKLCH | oklch(52.12% 0.168 30.5) |
| XYZ | xyz(20.9009, 12.6281, 3.0868) |
| Luminance | 0.1263 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Firebrick
#B22222
ΔE00 3.76
Brick
#A03623
ΔE00 4.36
Scarlet
#BE0119
ΔE00 4.60
Rusty Red
#AF2F0D
ΔE00 4.70
Brownish Red
#9E3623
ΔE00 4.75
Brown
#A52A2A
ΔE00 5.85
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B63525 #25A6B6
analogous
#B6255D #B63525 #B67E25
triadic
#B63525 #25B635 #3525B6
tetradic
#B63525 #5DB625 #25A6B6 #7E25B6
square
#B63525 #5DB625 #25A6B6 #7E25B6
split-complementary
#B63525 #25B67E #255DB6
monochromatic
#501710 #83261B #B63525 #D85140 #E37F73
Accessibility & contrast
On white
5.96
#B63525 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.53
#B63525 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B63525
5.96:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B63525 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B63525 | 1.00 | 5.96 | 3.53 | 5.96 |
| #FFFFFF | 5.96 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.53 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.96 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5B5222
Deuteranopia (green-blind)
#7B6E1F
Tritanopia (blue-blind)
#C90032
Achromatopsia (no color)
#646464
Design tokens & code
CSS
--color: #b63525; /* rgb */ color: rgb(182, 53, 37); /* oklch */ color: oklch(52.1% 0.168 30.5);
Tailwind
colors: {
custom: {
50: '#d57561',
500: '#b63525',
950: '#000000',
},
}SCSS
$custom: #b63525; $custom-light: #d57561; $custom-dark: #000000;
JSON
{
"hex": "#b63525",
"rgb": {
"r": 182,
"g": 53,
"b": 37
},
"hsl": {
"h": 6.621,
"s": 66.21,
"l": 42.941
},
"oklch": {
"l": 0.52122,
"c": 0.16824,
"h": 30.5
},
"luminance": 0.12625
}Semantic roles & 50–950 ramp
primary
#B63525
secondary
#6DBFCA
accent
#D6E93F
background
#FEF7F5
surface
#FCEDEA
border
#D5C8C6
text
#160905
muted
#847B79