#B03C23#B03C23
#B03C23 is a mid, vivid red. Relative luminance 0.126; OKLCH L 51.9% C 0.156 H 33.8°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).
Color values
| HEX | #B03C23 |
|---|---|
| RGB | rgb(176, 60, 35) |
| HSL | hsl(11, 67%, 41%) |
| HSV | hsv(11, 80%, 69%) |
| CMYK | cmyk(0%, 65.9%, 80.1%, 31%) |
| CIE-LAB | lab(42.13, 45.96, 39.99) |
| CIE-LCH | lch(42.13, 60.92, 41.03°) |
| OKLab | oklab(51.86% 0.1297 0.0867) |
| OKLCH | oklch(51.86% 0.156 33.8) |
| XYZ | xyz(19.8260, 12.5861, 2.9752) |
| Luminance | 0.1258 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Rusty Red
#AF2F0D
ΔE00 3.42
Brick
#A03623
ΔE00 3.89
Brownish Red
#9E3623
ΔE00 4.25
Rust Red
#AA2704
ΔE00 4.92
Rust
#B7410E
ΔE00 5.52
Firebrick
#B22222
ΔE00 5.61
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B03C23 #2397B0
analogous
#B02351 #B03C23 #B08323
triadic
#B03C23 #23B03C #3C23B0
tetradic
#B03C23 #51B023 #2397B0 #8323B0
square
#B03C23 #51B023 #2397B0 #8323B0
split-complementary
#B03C23 #23B083 #2351B0
monochromatic
#4A190F #7D2B19 #B03C23 #D85539 #E2816C
Accessibility & contrast
On white
5.97
#B03C23 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.52
#B03C23 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B03C23
5.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B03C23 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B03C23 | 1.00 | 5.97 | 3.52 | 5.97 |
| #FFFFFF | 5.97 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.52 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.97 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5D531F
Deuteranopia (green-blind)
#7A6D1E
Tritanopia (blue-blind)
#C21A37
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #b03c23; /* rgb */ color: rgb(176, 60, 35); /* oklch */ color: oklch(51.9% 0.156 33.8);
Tailwind
colors: {
custom: {
50: '#d07860',
500: '#b03c23',
950: '#000000',
},
}SCSS
$custom: #b03c23; $custom-light: #d07860; $custom-dark: #000000;
JSON
{
"hex": "#b03c23",
"rgb": {
"r": 176,
"g": 60,
"b": 35
},
"hsl": {
"h": 10.638,
"s": 66.825,
"l": 41.373
},
"oklch": {
"l": 0.51864,
"c": 0.15598,
"h": 33.8
},
"luminance": 0.12583
}Semantic roles & 50–950 ramp
primary
#B03C23
secondary
#67B7C8
accent
#CBEA3E
background
#FDF7F5
surface
#FBEDE9
border
#D4C8C5
text
#150905
muted
#837B79