#B33F38#B33F38

#B33F38 is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.0% C 0.152 H 27.0°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#B33F38
RGB	rgb(179, 63, 56)
HSL	hsl(3, 52%, 46%)
HSV	hsv(3, 69%, 70%)
CMYK	cmyk(0%, 64.8%, 68.7%, 29.8%)
CIE-LAB	lab(43.40, 46.64, 29.75)
CIE-LCH	lch(43.40, 55.32, 32.53°)
OKLab	oklab(53% 0.1357 0.0691)
OKLCH	oklch(53% 0.152 27)
XYZ	xyz(21.0839, 13.4272, 5.2221)
Luminance	0.1342 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33F38 #38ACB3

analogous

#B3386E #B33F38 #B37C38

triadic

#B33F38 #38B33F #3F38B3

tetradic

#B33F38 #6EB338 #38ACB3 #7C38B3

square

#B33F38 #6EB338 #38ACB3 #7C38B3

split-complementary

#B33F38 #38B37C #386EB3

monochromatic

#561E1B #842F29 #B33F38 #CC635C #DB8F8B

Accessibility & contrast

On white

5.70

#B33F38 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#B33F38 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33F38

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33F38	#FFFFFF	#000000	##FFFFFF
##B33F38	1.00	5.70	3.68	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5736

Deuteranopia (green-blind)

#7B7035

Tritanopia (blue-blind)

#C4233E

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33f38;
/* rgb */ color: rgb(179, 63, 56);
/* oklch */ color: oklch(53.0% 0.152 27.0);

Tailwind

colors: {
  custom: {
    50: '#d17a6f',
    500: '#b33f38',
    950: '#000000',
  },
}

SCSS

$custom: #b33f38;
$custom-light: #d17a6f;
$custom-dark: #000000;

JSON

{
  "hex": "#b33f38",
  "rgb": {
    "r": 179,
    "g": 63,
    "b": 56
  },
  "hsl": {
    "h": 3.415,
    "s": 52.34,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52995,
    "c": 0.15223,
    "h": 27
  },
  "luminance": 0.13424
}

Semantic roles & 50–950 ramp

primary

#B33F38

secondary

#82C1C5

accent

#D4DC4C

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B33F38

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

Preview Lab → · Contrast checker → · Palette generator →