#B33D2F#B33D2F
#B33D2F is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.6% C 0.156 H 29.9°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).
Color values
| HEX | #B33D2F |
|---|---|
| RGB | rgb(179, 61, 47) |
| HSL | hsl(6, 58%, 44%) |
| HSV | hsv(6, 74%, 70%) |
| CMYK | cmyk(0%, 65.9%, 73.7%, 29.8%) |
| CIE-LAB | lab(42.96, 47.06, 34.46) |
| CIE-LCH | lch(42.96, 58.32, 36.21°) |
| OKLab | oklab(52.63% 0.1351 0.0777) |
| OKLCH | oklch(52.63% 0.156 29.9) |
| XYZ | xyz(20.7745, 13.1294, 4.1291) |
| Luminance | 0.1313 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Firebrick
#B22222
ΔE00 4.41
Dull Red
#BB3F3F
ΔE00 4.64
Brick
#A03623
ΔE00 4.65
Brownish Red
#9E3623
ΔE00 4.99
Reddish
#C44240
ΔE00 5.30
Brown
#A52A2A
ΔE00 5.56
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B33D2F #2FA5B3
analogous
#B32F63 #B33D2F #B37F2F
triadic
#B33D2F #2FB33D #3D2FB3
tetradic
#B33D2F #63B32F #2FA5B3 #7F2FB3
square
#B33D2F #63B32F #2FA5B3 #7F2FB3
split-complementary
#B33D2F #2FB37F #2F63B3
monochromatic
#521C16 #832C22 #B33D2F #D15C4F #DD897F
Accessibility & contrast
On white
5.79
#B33D2F on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.63
#B33D2F on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B33D2F
5.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B33D2F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B33D2F | 1.00 | 5.79 | 3.63 | 5.79 |
| #FFFFFF | 5.79 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.79 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5E552D
Deuteranopia (green-blind)
#7B6F2B
Tritanopia (blue-blind)
#C51D3B
Achromatopsia (no color)
#656565
Design tokens & code
CSS
--color: #b33d2f; /* rgb */ color: rgb(179, 61, 47); /* oklch */ color: oklch(52.6% 0.156 29.9);
Tailwind
colors: {
custom: {
50: '#d17968',
500: '#b33d2f',
950: '#000000',
},
}SCSS
$custom: #b33d2f; $custom-light: #d17968; $custom-dark: #000000;
JSON
{
"hex": "#b33d2f",
"rgb": {
"r": 179,
"g": 61,
"b": 47
},
"hsl": {
"h": 6.364,
"s": 58.407,
"l": 44.314
},
"oklch": {
"l": 0.52625,
"c": 0.15587,
"h": 29.9
},
"luminance": 0.13126
}Semantic roles & 50–950 ramp
primary
#B33D2F
secondary
#78BEC6
accent
#D1E246
background
#FDF7F6
surface
#FBEEEB
border
#D4C9C6
text
#150906
muted
#837B7A