#B33747#B33747

#B33747 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.3% C 0.159 H 17.3°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#B33747
RGB	rgb(179, 55, 71)
HSL	hsl(352, 53%, 46%)
HSV	hsv(352, 69%, 70%)
CMYK	cmyk(0%, 69.3%, 60.3%, 29.8%)
CIE-LAB	lab(42.42, 50.92, 19.42)
CIE-LCH	lch(42.42, 54.50, 20.88°)
OKLab	oklab(52.34% 0.1521 0.0474)
OKLCH	oklch(52.34% 0.159 17.3)
XYZ	xyz(21.0960, 12.7740, 7.3148)
Luminance	0.1277 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33747 #37B3A3

analogous

#B33785 #B33747 #B36537

triadic

#B33747 #47B337 #3747B3

tetradic

#B33747 #85B337 #37B3A3 #6537B3

square

#B33747 #85B337 #37B3A3 #6537B3

split-complementary

#B33747 #37B365 #3785B3

monochromatic

#551A22 #842934 #B33747 #CD5B69 #DB8A94

Accessibility & contrast

On white

5.91

#B33747 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#B33747 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33747

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33747	#FFFFFF	#000000	##FFFFFF
##B33747	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575447

Deuteranopia (green-blind)

#776E44

Tritanopia (blue-blind)

#C4193E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33747;
/* rgb */ color: rgb(179, 55, 71);
/* oklch */ color: oklch(52.3% 0.159 17.3);

Tailwind

colors: {
  custom: {
    50: '#d0767a',
    500: '#b33747',
    950: '#000000',
  },
}

SCSS

$custom: #b33747;
$custom-light: #d0767a;
$custom-dark: #000000;

JSON

{
  "hex": "#b33747",
  "rgb": {
    "r": 179,
    "g": 55,
    "b": 71
  },
  "hsl": {
    "h": 352.258,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52344,
    "c": 0.15935,
    "h": 17.3
  },
  "luminance": 0.12771
}

Semantic roles & 50–950 ramp

primary

#B33747

secondary

#81C5BC

accent

#DCCA4B

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150909

muted

#837B7B

Preview Lab

Preview with #B33747

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

Preview Lab → · Contrast checker → · Palette generator →