#B33621#B33621

#B33621 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.7% C 0.165 H 32.1°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#B33621
RGB	rgb(179, 54, 33)
HSL	hsl(9, 69%, 42%)
HSV	hsv(9, 82%, 70%)
CMYK	cmyk(0%, 69.8%, 81.6%, 29.8%)
CIE-LAB	lab(41.74, 49.42, 40.83)
CIE-LCH	lch(41.74, 64.11, 39.56°)
OKLab	oklab(51.67% 0.1397 0.0876)
OKLCH	oklch(51.67% 0.165 32.1)
XYZ	xyz(20.1864, 12.3349, 2.7565)
Luminance	0.1233 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33621 #219EB3

analogous

#B32155 #B33621 #B37F21

triadic

#B33621 #21B336 #3621B3

tetradic

#B33621 #55B321 #219EB3 #7F21B3

square

#B33621 #55B321 #219EB3 #7F21B3

split-complementary

#B33621 #21B37F #2155B3

monochromatic

#4C170E #7F2617 #B33621 #DA4F37 #E47C6B

Accessibility & contrast

On white

6.06

#B33621 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#B33621 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33621

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33621	#FFFFFF	#000000	##FFFFFF
##B33621	1.00	6.06	3.47	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B511D

Deuteranopia (green-blind)

#7A6D1B

Tritanopia (blue-blind)

#C50432

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b33621;
/* rgb */ color: rgb(179, 54, 33);
/* oklch */ color: oklch(51.7% 0.165 32.1);

Tailwind

colors: {
  custom: {
    50: '#d3755e',
    500: '#b33621',
    950: '#000000',
  },
}

SCSS

$custom: #b33621;
$custom-light: #d3755e;
$custom-dark: #000000;

JSON

{
  "hex": "#b33621",
  "rgb": {
    "r": 179,
    "g": 54,
    "b": 33
  },
  "hsl": {
    "h": 8.63,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.51668,
    "c": 0.16494,
    "h": 32.1
  },
  "luminance": 0.12332
}

Semantic roles & 50–950 ramp

primary

#B33621

secondary

#66BBCA

accent

#D2EC3C

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B33621

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

Preview Lab → · Contrast checker → · Palette generator →