#B33D2A#B33D2A

#B33D2A is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.6% C 0.157 H 31.7°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#B33D2A
RGB	rgb(179, 61, 42)
HSL	hsl(8, 62%, 43%)
HSV	hsv(8, 77%, 70%)
CMYK	cmyk(0%, 65.9%, 76.5%, 29.8%)
CIE-LAB	lab(42.90, 46.84, 37.20)
CIE-LCH	lch(42.90, 59.81, 38.45°)
OKLab	oklab(52.56% 0.1334 0.0824)
OKLCH	oklch(52.56% 0.157 31.7)
XYZ	xyz(20.6794, 13.0914, 3.6280)
Luminance	0.1309 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33D2A #2AA0B3

analogous

#B32A5B #B33D2A #B3812A

triadic

#B33D2A #2AB33D #3D2AB3

tetradic

#B33D2A #5BB32A #2AA0B3 #812AB3

square

#B33D2A #5BB32A #2AA0B3 #812AB3

split-complementary

#B33D2A #2AB381 #2A5BB3

monochromatic

#501B13 #812C1E #B33D2A #D45A46 #DF8678

Accessibility & contrast

On white

5.80

#B33D2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B33D2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33D2A

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33D2A	#FFFFFF	#000000	##FFFFFF
##B33D2A	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5527

Deuteranopia (green-blind)

#7C6F26

Tritanopia (blue-blind)

#C51C39

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33d2a;
/* rgb */ color: rgb(179, 61, 42);
/* oklch */ color: oklch(52.6% 0.157 31.7);

Tailwind

colors: {
  custom: {
    50: '#d27865',
    500: '#b33d2a',
    950: '#000000',
  },
}

SCSS

$custom: #b33d2a;
$custom-light: #d27865;
$custom-dark: #000000;

JSON

{
  "hex": "#b33d2a",
  "rgb": {
    "r": 179,
    "g": 61,
    "b": 42
  },
  "hsl": {
    "h": 8.321,
    "s": 61.991,
    "l": 43.333
  },
  "oklch": {
    "l": 0.52564,
    "c": 0.15685,
    "h": 31.7
  },
  "luminance": 0.13088
}

Semantic roles & 50–950 ramp

primary

#B33D2A

secondary

#72BBC7

accent

#CFE543

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B33D2A

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

Preview Lab → · Contrast checker → · Palette generator →