#B33A2D#B33A2D

#B33A2D is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.2% C 0.159 H 29.6°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#B33A2D
RGB	rgb(179, 58, 45)
HSL	hsl(6, 60%, 44%)
HSV	hsv(6, 75%, 70%)
CMYK	cmyk(0%, 67.6%, 74.9%, 29.8%)
CIE-LAB	lab(42.46, 48.24, 35.04)
CIE-LCH	lch(42.46, 59.63, 36.00°)
OKLab	oklab(52.25% 0.1384 0.0785)
OKLCH	oklch(52.25% 0.159 29.6)
XYZ	xyz(20.5794, 12.8023, 3.8696)
Luminance	0.1280 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33A2D #2DA6B3

analogous

#B32D63 #B33A2D #B37D2D

triadic

#B33A2D #2DB33A #3A2DB3

tetradic

#B33A2D #63B32D #2DA6B3 #7D2DB3

square

#B33A2D #63B32D #2DA6B3 #7D2DB3

split-complementary

#B33A2D #2DB37D #2D63B3

monochromatic

#511A14 #822A21 #B33A2D #D2584B #DE867C

Accessibility & contrast

On white

5.90

#B33A2D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B33A2D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33A2D

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33A2D	#FFFFFF	#000000	##FFFFFF
##B33A2D	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C532B

Deuteranopia (green-blind)

#7A6E29

Tritanopia (blue-blind)

#C51638

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33a2d;
/* rgb */ color: rgb(179, 58, 45);
/* oklch */ color: oklch(52.2% 0.159 29.6);

Tailwind

colors: {
  custom: {
    50: '#d27767',
    500: '#b33a2d',
    950: '#000000',
  },
}

SCSS

$custom: #b33a2d;
$custom-light: #d27767;
$custom-dark: #000000;

JSON

{
  "hex": "#b33a2d",
  "rgb": {
    "r": 179,
    "g": 58,
    "b": 45
  },
  "hsl": {
    "h": 5.821,
    "s": 59.821,
    "l": 43.922
  },
  "oklch": {
    "l": 0.52247,
    "c": 0.15913,
    "h": 29.6
  },
  "luminance": 0.12799
}

Semantic roles & 50–950 ramp

primary

#B33A2D

secondary

#75BFC7

accent

#D4E345

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B33A2D

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

Preview Lab → · Contrast checker → · Palette generator →