#B53E30#B53E30
#B53E30 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.1% C 0.157 H 29.8°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).
Color values
| HEX | #B53E30 |
|---|---|
| RGB | rgb(181, 62, 48) |
| HSL | hsl(6, 58%, 45%) |
| HSV | hsv(6, 73%, 71%) |
| CMYK | cmyk(0%, 65.7%, 73.5%, 29%) |
| CIE-LAB | lab(43.49, 47.37, 34.58) |
| CIE-LCH | lch(43.49, 58.65, 36.13°) |
| OKLab | oklab(53.09% 0.1361 0.0781) |
| OKLCH | oklch(53.09% 0.157 29.8) |
| XYZ | xyz(21.3145, 13.4855, 4.2763) |
| Luminance | 0.1348 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 4.43
Firebrick
#B22222
ΔE00 4.74
Reddish
#C44240
ΔE00 4.92
Brick
#A03623
ΔE00 5.12
Brownish Red
#9E3623
ΔE00 5.47
Brown
#A52A2A
ΔE00 5.97
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B53E30 #30A7B5
analogous
#B53064 #B53E30 #B58130
triadic
#B53E30 #30B53E #3E30B5
tetradic
#B53E30 #64B530 #30A7B5 #8130B5
square
#B53E30 #64B530 #30A7B5 #8130B5
split-complementary
#B53E30 #30B581 #3064B5
monochromatic
#541D16 #852D23 #B53E30 #D15F51 #DE8B82
Accessibility & contrast
On white
5.68
#B53E30 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.70
#B53E30 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B53E30
5.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B53E30 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B53E30 | 1.00 | 5.68 | 3.70 | 5.68 |
| #FFFFFF | 5.68 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.70 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.68 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5F562E
Deuteranopia (green-blind)
#7D702C
Tritanopia (blue-blind)
#C71E3C
Achromatopsia (no color)
#676767
Design tokens & code
CSS
--color: #b53e30; /* rgb */ color: rgb(181, 62, 48); /* oklch */ color: oklch(53.1% 0.157 29.8);
Tailwind
colors: {
custom: {
50: '#d37969',
500: '#b53e30',
950: '#000000',
},
}SCSS
$custom: #b53e30; $custom-light: #d37969; $custom-dark: #000000;
JSON
{
"hex": "#b53e30",
"rgb": {
"r": 181,
"g": 62,
"b": 48
},
"hsl": {
"h": 6.316,
"s": 58.079,
"l": 44.902
},
"oklch": {
"l": 0.53092,
"c": 0.15688,
"h": 29.8
},
"luminance": 0.13482
}Semantic roles & 50–950 ramp
primary
#B53E30
secondary
#7ABFC7
accent
#D1E146
background
#FEF7F6
surface
#FCEEEB
border
#D5C9C6
text
#160906
muted
#847B7A