#B33D2C#B33D2C

#B33D2C is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.6% C 0.156 H 31.0°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#B33D2C
RGB	rgb(179, 61, 44)
HSL	hsl(8, 61%, 44%)
HSV	hsv(8, 75%, 70%)
CMYK	cmyk(0%, 65.9%, 75.4%, 29.8%)
CIE-LAB	lab(42.92, 46.93, 36.11)
CIE-LCH	lch(42.92, 59.21, 37.58°)
OKLab	oklab(52.59% 0.1341 0.0806)
OKLCH	oklch(52.59% 0.156 31)
XYZ	xyz(20.7160, 13.1060, 3.8213)
Luminance	0.1310 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33D2C #2CA2B3

analogous

#B32C5E #B33D2C #B3802C

triadic

#B33D2C #2CB33D #3D2CB3

tetradic

#B33D2C #5EB32C #2CA2B3 #802CB3

square

#B33D2C #5EB32C #2CA2B3 #802CB3

split-complementary

#B33D2C #2CB380 #2C5EB3

monochromatic

#511C14 #822C20 #B33D2C #D25B4A #DF877B

Accessibility & contrast

On white

5.80

#B33D2C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B33D2C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33D2C

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33D2C	#FFFFFF	#000000	##FFFFFF
##B33D2C	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)

#5E5529

Deuteranopia (green-blind)

#7C6F28

Tritanopia (blue-blind)

#C51C3A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33d2c;
/* rgb */ color: rgb(179, 61, 44);
/* oklch */ color: oklch(52.6% 0.156 31.0);

Tailwind

colors: {
  custom: {
    50: '#d27966',
    500: '#b33d2c',
    950: '#000000',
  },
}

SCSS

$custom: #b33d2c;
$custom-light: #d27966;
$custom-dark: #000000;

JSON

{
  "hex": "#b33d2c",
  "rgb": {
    "r": 179,
    "g": 61,
    "b": 44
  },
  "hsl": {
    "h": 7.556,
    "s": 60.538,
    "l": 43.725
  },
  "oklch": {
    "l": 0.52587,
    "c": 0.15645,
    "h": 31
  },
  "luminance": 0.13103
}

Semantic roles & 50–950 ramp

primary

#B33D2C

secondary

#74BCC7

accent

#D0E444

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B33D2C

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →