#B03A38#B03A38
#B03A38 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.9% C 0.154 H 25.1°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #B03A38 |
|---|---|
| RGB | rgb(176, 58, 56) |
| HSL | hsl(1, 52%, 45%) |
| HSV | hsv(1, 68%, 69%) |
| CMYK | cmyk(0%, 67%, 68.2%, 31%) |
| CIE-LAB | lab(42.07, 47.76, 28.02) |
| CIE-LCH | lch(42.07, 55.37, 30.40°) |
| OKLab | oklab(51.9% 0.1395 0.0654) |
| OKLCH | oklch(51.9% 0.154 25.1) |
| XYZ | xyz(20.1335, 12.5446, 5.1018) |
| Luminance | 0.1254 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 2.77
Brown
#A52A2A
ΔE00 4.13
Firebrick
#B22222
ΔE00 4.68
Reddish
#C44240
ΔE00 4.78
Cardinal
#C41E3A
ΔE00 5.16
Lipstick Red
#C0022F
ΔE00 5.43
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B03A38 #38AEB0
analogous
#B03872 #B03A38 #B07638
triadic
#B03A38 #38B03A #3A38B0
tetradic
#B03A38 #72B038 #38AEB0 #7638B0
square
#B03A38 #72B038 #38AEB0 #7638B0
split-complementary
#B03A38 #38B076 #3872B0
monochromatic
#531B1A #822B29 #B03A38 #CB5C5B #D98A89
Accessibility & contrast
On white
5.99
#B03A38 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.51
#B03A38 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B03A38
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B03A38 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B03A38 | 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)
#5A5337
Deuteranopia (green-blind)
#786D35
Tritanopia (blue-blind)
#C11B3B
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #b03a38; /* rgb */ color: rgb(176, 58, 56); /* oklch */ color: oklch(51.9% 0.154 25.1);
Tailwind
colors: {
custom: {
50: '#cf776e',
500: '#b03a38',
950: '#000000',
},
}SCSS
$custom: #b03a38; $custom-light: #cf776e; $custom-dark: #000000;
JSON
{
"hex": "#b03a38",
"rgb": {
"r": 176,
"g": 58,
"b": 56
},
"hsl": {
"h": 1,
"s": 51.724,
"l": 45.49
},
"oklch": {
"l": 0.51897,
"c": 0.1541,
"h": 25.1
},
"luminance": 0.12542
}Semantic roles & 50–950 ramp
primary
#B03A38
secondary
#80C2C4
accent
#D9DB4D
background
#FDF7F6
surface
#FBEDEC
border
#D4C8C7
text
#150907
muted
#837B7A