#B33539#B33539

#B33539 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.9% C 0.162 H 23.2°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#B33539
RGB	rgb(179, 53, 57)
HSL	hsl(358, 54%, 45%)
HSV	hsv(358, 70%, 70%)
CMYK	cmyk(0%, 70.4%, 68.2%, 29.8%)
CIE-LAB	lab(41.89, 50.84, 27.32)
CIE-LCH	lch(41.89, 57.72, 28.25°)
OKLab	oklab(51.87% 0.1491 0.0639)
OKLCH	oklch(51.87% 0.162 23.2)
XYZ	xyz(20.6042, 12.4283, 5.1841)
Luminance	0.1242 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33539 #35B3AF

analogous

#B33578 #B33539 #B37035

triadic

#B33539 #39B335 #3539B3

tetradic

#B33539 #78B335 #35B3AF #7035B3

square

#B33539 #78B335 #35B3AF #7035B3

split-complementary

#B33539 #35B370 #3578B3

monochromatic

#55191B #84272A #B33539 #CD585B #DB878A

Accessibility & contrast

On white

6.03

#B33539 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#B33539 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33539

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33539	#FFFFFF	#000000	##FFFFFF
##B33539	1.00	6.03	3.49	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585238

Deuteranopia (green-blind)

#786D35

Tritanopia (blue-blind)

#C50C38

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b33539;
/* rgb */ color: rgb(179, 53, 57);
/* oklch */ color: oklch(51.9% 0.162 23.2);

Tailwind

colors: {
  custom: {
    50: '#d1756f',
    500: '#b33539',
    950: '#000000',
  },
}

SCSS

$custom: #b33539;
$custom-light: #d1756f;
$custom-dark: #000000;

JSON

{
  "hex": "#b33539",
  "rgb": {
    "r": 179,
    "g": 53,
    "b": 57
  },
  "hsl": {
    "h": 358.095,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51869,
    "c": 0.16222,
    "h": 23.2
  },
  "luminance": 0.12425
}

Semantic roles & 50–950 ramp

primary

#B33539

secondary

#7FC5C3

accent

#DED94A

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33539

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

Preview Lab → · Contrast checker → · Palette generator →