#B33D2D#B33D2D
#B33D2D is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.6% C 0.156 H 30.6°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).
Color values
| HEX | #B33D2D |
|---|---|
| RGB | rgb(179, 61, 45) |
| HSL | hsl(7, 60%, 44%) |
| HSV | hsv(7, 75%, 70%) |
| CMYK | cmyk(0%, 65.9%, 74.9%, 29.8%) |
| CIE-LAB | lab(42.93, 46.97, 35.56) |
| CIE-LCH | lch(42.93, 58.91, 37.13°) |
| OKLab | oklab(52.6% 0.1344 0.0796) |
| OKLCH | oklch(52.6% 0.156 30.6) |
| XYZ | xyz(20.7351, 13.1137, 3.9215) |
| Luminance | 0.1311 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Brick
#A03623
ΔE00 4.46
Firebrick
#B22222
ΔE00 4.55
Brownish Red
#9E3623
ΔE00 4.82
Dull Red
#BB3F3F
ΔE00 5.19
Reddish
#C44240
ΔE00 5.72
Rusty Red
#AF2F0D
ΔE00 5.76
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B33D2D #2DA3B3
analogous
#B32D60 #B33D2D #B3802D
triadic
#B33D2D #2DB33D #3D2DB3
tetradic
#B33D2D #60B32D #2DA3B3 #802DB3
square
#B33D2D #60B32D #2DA3B3 #802DB3
split-complementary
#B33D2D #2DB380 #2D60B3
monochromatic
#511C14 #822C21 #B33D2D #D25B4B #DE887C
Accessibility & contrast
On white
5.80
#B33D2D on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.62
#B33D2D on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B33D2D
5.80:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B33D2D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B33D2D | 1.00 | 5.80 | 3.62 | 5.80 |
| #FFFFFF | 5.80 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.62 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.80 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5E552A
Deuteranopia (green-blind)
#7B6F29
Tritanopia (blue-blind)
#C51D3A
Achromatopsia (no color)
#656565
Design tokens & code
CSS
--color: #b33d2d; /* rgb */ color: rgb(179, 61, 45); /* oklch */ color: oklch(52.6% 0.156 30.6);
Tailwind
colors: {
custom: {
50: '#d27967',
500: '#b33d2d',
950: '#000000',
},
}SCSS
$custom: #b33d2d; $custom-light: #d27967; $custom-dark: #000000;
JSON
{
"hex": "#b33d2d",
"rgb": {
"r": 179,
"g": 61,
"b": 45
},
"hsl": {
"h": 7.164,
"s": 59.821,
"l": 43.922
},
"oklch": {
"l": 0.52599,
"c": 0.15626,
"h": 30.6
},
"luminance": 0.13111
}Semantic roles & 50–950 ramp
primary
#B33D2D
secondary
#75BDC7
accent
#D0E345
background
#FDF7F6
surface
#FBEEEB
border
#D4C9C6
text
#160906
muted
#847B7A