#B33840#B33840

#B33840 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.3% C 0.159 H 21.0°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#B33840
RGB	rgb(179, 56, 64)
HSL	hsl(356, 52%, 46%)
HSV	hsv(356, 69%, 70%)
CMYK	cmyk(0%, 68.7%, 64.2%, 29.8%)
CIE-LAB	lab(42.44, 50.06, 23.75)
CIE-LCH	lch(42.44, 55.41, 25.38°)
OKLab	oklab(52.32% 0.1481 0.0567)
OKLCH	oklch(52.32% 0.159 21)
XYZ	xyz(20.9321, 12.7852, 6.2151)
Luminance	0.1278 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33840 #38B3AB

analogous

#B3387D #B33840 #B36D38

triadic

#B33840 #40B338 #3840B3

tetradic

#B33840 #7DB338 #38B3AB #6D38B3

square

#B33840 #7DB338 #38B3AB #6D38B3

split-complementary

#B33840 #38B36D #387DB3

monochromatic

#561B1F #84292F #B33840 #CC5C63 #DB8B90

Accessibility & contrast

On white

5.90

#B33840 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B33840 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33840

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33840	#FFFFFF	#000000	##FFFFFF
##B33840	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59543F

Deuteranopia (green-blind)

#786E3D

Tritanopia (blue-blind)

#C4183C

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33840;
/* rgb */ color: rgb(179, 56, 64);
/* oklch */ color: oklch(52.3% 0.159 21.0);

Tailwind

colors: {
  custom: {
    50: '#d17674',
    500: '#b33840',
    950: '#000000',
  },
}

SCSS

$custom: #b33840;
$custom-light: #d17674;
$custom-dark: #000000;

JSON

{
  "hex": "#b33840",
  "rgb": {
    "r": 179,
    "g": 56,
    "b": 64
  },
  "hsl": {
    "h": 356.098,
    "s": 52.34,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52315,
    "c": 0.15857,
    "h": 21
  },
  "luminance": 0.12782
}

Semantic roles & 50–950 ramp

primary

#B33840

secondary

#82C5C1

accent

#DCD24C

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B33840

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

Preview Lab → · Contrast checker → · Palette generator →