#B33638#B33638

#B33638 is a mid, vivid red. Relative luminance 0.125; OKLCH L 52.0% C 0.161 H 23.9°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#B33638
RGB	rgb(179, 54, 56)
HSL	hsl(359, 54%, 46%)
HSV	hsv(359, 70%, 70%)
CMYK	cmyk(0%, 69.8%, 68.7%, 29.8%)
CIE-LAB	lab(42.02, 50.39, 28.08)
CIE-LCH	lch(42.02, 57.69, 29.13°)
OKLab	oklab(51.96% 0.1475 0.0654)
OKLCH	oklch(51.96% 0.161 23.9)
XYZ	xyz(20.6256, 12.5106, 5.0693)
Luminance	0.1251 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33638 #36B3B1

analogous

#B33676 #B33638 #B37236

triadic

#B33638 #38B336 #3638B3

tetradic

#B33638 #76B336 #36B3B1 #7236B3

square

#B33638 #76B336 #36B3B1 #7236B3

split-complementary

#B33638 #36B372 #3676B3

monochromatic

#551A1B #842829 #B33638 #CD595B #DB888A

Accessibility & contrast

On white

6.00

#B33638 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B33638 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33638

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33638	#FFFFFF	#000000	##FFFFFF
##B33638	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595237

Deuteranopia (green-blind)

#786D34

Tritanopia (blue-blind)

#C50F38

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b33638;
/* rgb */ color: rgb(179, 54, 56);
/* oklch */ color: oklch(52.0% 0.161 23.9);

Tailwind

colors: {
  custom: {
    50: '#d1756e',
    500: '#b33638',
    950: '#000000',
  },
}

SCSS

$custom: #b33638;
$custom-light: #d1756e;
$custom-dark: #000000;

JSON

{
  "hex": "#b33638",
  "rgb": {
    "r": 179,
    "g": 54,
    "b": 56
  },
  "hsl": {
    "h": 359.04,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.51959,
    "c": 0.16135,
    "h": 23.9
  },
  "luminance": 0.12508
}

Semantic roles & 50–950 ramp

primary

#B33638

secondary

#80C5C4

accent

#DDDB4B

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33638

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

Preview Lab → · Contrast checker → · Palette generator →