#B33020#B33020

#B33020 is a mid, vivid red. Relative luminance 0.118; OKLCH L 51.0% C 0.170 H 30.6°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#B33020
RGB	rgb(179, 48, 32)
HSL	hsl(7, 70%, 41%)
HSV	hsv(7, 82%, 70%)
CMYK	cmyk(0%, 73.2%, 82.1%, 29.8%)
CIE-LAB	lab(40.90, 51.67, 40.55)
CIE-LCH	lch(40.90, 65.68, 38.12°)
OKLab	oklab(51.04% 0.1466 0.0866)
OKLCH	oklch(51.04% 0.17 30.6)
XYZ	xyz(19.9105, 11.8050, 2.5964)
Luminance	0.1180 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33020 #20A3B3

analogous

#B3205A #B33020 #B37A20

triadic

#B33020 #20B330 #3020B3

tetradic

#B33020 #5AB320 #20A3B3 #7A20B3

square

#B33020 #5AB320 #20A3B3 #7A20B3

split-complementary

#B33020 #20B37A #205AB3

monochromatic

#4B140D #7F2217 #B33020 #DB4735 #E47769

Accessibility & contrast

On white

6.25

#B33020 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#B33020 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33020

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33020	#FFFFFF	#000000	##FFFFFF
##B33020	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E1D

Deuteranopia (green-blind)

#786B19

Tritanopia (blue-blind)

#C5002E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b33020;
/* rgb */ color: rgb(179, 48, 32);
/* oklch */ color: oklch(51.0% 0.170 30.6);

Tailwind

colors: {
  custom: {
    50: '#d3725d',
    500: '#b33020',
    950: '#000000',
  },
}

SCSS

$custom: #b33020;
$custom-light: #d3725d;
$custom-dark: #000000;

JSON

{
  "hex": "#b33020",
  "rgb": {
    "r": 179,
    "g": 48,
    "b": 32
  },
  "hsl": {
    "h": 6.531,
    "s": 69.668,
    "l": 41.373
  },
  "oklch": {
    "l": 0.51037,
    "c": 0.17025,
    "h": 30.6
  },
  "luminance": 0.11802
}

Semantic roles & 50–950 ramp

primary

#B33020

secondary

#65BFCA

accent

#D9EC3B

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B33020

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

Preview Lab → · Contrast checker → · Palette generator →