#B33640#B33640

#B33640 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.1% C 0.161 H 20.4°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#B33640
RGB	rgb(179, 54, 64)
HSL	hsl(355, 54%, 46%)
HSV	hsv(355, 70%, 70%)
CMYK	cmyk(0%, 69.8%, 64.2%, 29.8%)
CIE-LAB	lab(42.15, 50.85, 23.38)
CIE-LCH	lch(42.15, 55.97, 24.69°)
OKLab	oklab(52.1% 0.1506 0.0559)
OKLCH	oklch(52.1% 0.161 20.4)
XYZ	xyz(20.8371, 12.5952, 6.1834)
Luminance	0.1259 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33640 #36B3A9

analogous

#B3367E #B33640 #B36A36

triadic

#B33640 #40B336 #3640B3

tetradic

#B33640 #7EB336 #36B3A9 #6A36B3

square

#B33640 #7EB336 #36B3A9 #6A36B3

split-complementary

#B33640 #36B36A #367EB3

monochromatic

#551A1E #84282F #B33640 #CD5962 #DB888F

Accessibility & contrast

On white

5.97

#B33640 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#B33640 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33640

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33640	#FFFFFF	#000000	##FFFFFF
##B33640	1.00	5.97	3.52	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58533F

Deuteranopia (green-blind)

#776D3D

Tritanopia (blue-blind)

#C4133B

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b33640;
/* rgb */ color: rgb(179, 54, 64);
/* oklch */ color: oklch(52.1% 0.161 20.4);

Tailwind

colors: {
  custom: {
    50: '#d17574',
    500: '#b33640',
    950: '#000000',
  },
}

SCSS

$custom: #b33640;
$custom-light: #d17574;
$custom-dark: #000000;

JSON

{
  "hex": "#b33640",
  "rgb": {
    "r": 179,
    "g": 54,
    "b": 64
  },
  "hsl": {
    "h": 355.2,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52098,
    "c": 0.16064,
    "h": 20.4
  },
  "luminance": 0.12592
}

Semantic roles & 50–950 ramp

primary

#B33640

secondary

#80C5C0

accent

#DDD14B

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B33640

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

Preview Lab → · Contrast checker → · Palette generator →