#B33538#B33538

#B33538 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.9% C 0.162 H 23.6°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#B33538
RGB	rgb(179, 53, 56)
HSL	hsl(359, 54%, 45%)
HSV	hsv(359, 70%, 70%)
CMYK	cmyk(0%, 70.4%, 68.7%, 29.8%)
CIE-LAB	lab(41.87, 50.78, 27.91)
CIE-LCH	lch(41.87, 57.95, 28.79°)
OKLab	oklab(51.85% 0.1487 0.065)
OKLCH	oklch(51.85% 0.162 23.6)
XYZ	xyz(20.5795, 12.4185, 5.0540)
Luminance	0.1241 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33538 #35B3B0

analogous

#B33577 #B33538 #B37135

triadic

#B33538 #38B335 #3538B3

tetradic

#B33538 #77B335 #35B3B0 #7135B3

square

#B33538 #77B335 #35B3B0 #7135B3

split-complementary

#B33538 #35B371 #3577B3

monochromatic

#55191A #842729 #B33538 #CD585B #DB8789

Accessibility & contrast

On white

6.03

#B33538 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#B33538 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33538

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33538	#FFFFFF	#000000	##FFFFFF
##B33538	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585237

Deuteranopia (green-blind)

#786D34

Tritanopia (blue-blind)

#C50C37

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b33538;
/* rgb */ color: rgb(179, 53, 56);
/* oklch */ color: oklch(51.9% 0.162 23.6);

Tailwind

colors: {
  custom: {
    50: '#d1756e',
    500: '#b33538',
    950: '#000000',
  },
}

SCSS

$custom: #b33538;
$custom-light: #d1756e;
$custom-dark: #000000;

JSON

{
  "hex": "#b33538",
  "rgb": {
    "r": 179,
    "g": 53,
    "b": 56
  },
  "hsl": {
    "h": 358.571,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51852,
    "c": 0.16233,
    "h": 23.6
  },
  "luminance": 0.12415
}

Semantic roles & 50–950 ramp

primary

#B33538

secondary

#7FC5C4

accent

#DEDA4A

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33538

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

Preview Lab → · Contrast checker → · Palette generator →