#B33742#B33742

#B33742 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.2% C 0.159 H 19.7°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#B33742
RGB	rgb(179, 55, 66)
HSL	hsl(355, 53%, 46%)
HSV	hsv(355, 69%, 70%)
CMYK	cmyk(0%, 69.3%, 63.1%, 29.8%)
CIE-LAB	lab(42.33, 50.59, 22.38)
CIE-LCH	lch(42.33, 55.32, 23.87°)
OKLab	oklab(52.24% 0.1501 0.0538)
OKLCH	oklch(52.24% 0.159 19.7)
XYZ	xyz(20.9421, 12.7124, 6.5042)
Luminance	0.1271 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33742 #37B3A8

analogous

#B33780 #B33742 #B36A37

triadic

#B33742 #42B337 #3742B3

tetradic

#B33742 #80B337 #37B3A8 #6A37B3

square

#B33742 #80B337 #37B3A8 #6A37B3

split-complementary

#B33742 #37B36A #3780B3

monochromatic

#551A1F #842931 #B33742 #CD5B65 #DB8A91

Accessibility & contrast

On white

5.93

#B33742 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#B33742 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33742

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33742	#FFFFFF	#000000	##FFFFFF
##B33742	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585342

Deuteranopia (green-blind)

#776E3F

Tritanopia (blue-blind)

#C4163C

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33742;
/* rgb */ color: rgb(179, 55, 66);
/* oklch */ color: oklch(52.2% 0.159 19.7);

Tailwind

colors: {
  custom: {
    50: '#d17676',
    500: '#b33742',
    950: '#000000',
  },
}

SCSS

$custom: #b33742;
$custom-light: #d17676;
$custom-dark: #000000;

JSON

{
  "hex": "#b33742",
  "rgb": {
    "r": 179,
    "g": 55,
    "b": 66
  },
  "hsl": {
    "h": 354.677,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52244,
    "c": 0.15949,
    "h": 19.7
  },
  "luminance": 0.12709
}

Semantic roles & 50–950 ramp

primary

#B33742

secondary

#81C5BF

accent

#DCD04B

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B33742

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

Preview Lab → · Contrast checker → · Palette generator →