#B33D36#B33D36

#B33D36 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.7% C 0.155 H 27.1°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#B33D36
RGB	rgb(179, 61, 54)
HSL	hsl(3, 54%, 46%)
HSV	hsv(3, 70%, 70%)
CMYK	cmyk(0%, 65.9%, 69.8%, 29.8%)
CIE-LAB	lab(43.05, 47.40, 30.51)
CIE-LCH	lch(43.05, 56.37, 32.77°)
OKLab	oklab(52.72% 0.1376 0.0704)
OKLCH	oklch(52.72% 0.155 27.1)
XYZ	xyz(20.9272, 13.1905, 4.9334)
Luminance	0.1319 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33D36 #36ACB3

analogous

#B3366D #B33D36 #B37B36

triadic

#B33D36 #36B33D #3D36B3

tetradic

#B33D36 #6DB336 #36ACB3 #7B36B3

square

#B33D36 #6DB336 #36ACB3 #7B36B3

split-complementary

#B33D36 #36B37B #366DB3

monochromatic

#551D1A #842D28 #B33D36 #CD6059 #DB8D88

Accessibility & contrast

On white

5.77

#B33D36 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B33D36 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33D36

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33D36	#FFFFFF	#000000	##FFFFFF
##B33D36	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5634

Deuteranopia (green-blind)

#7B6F32

Tritanopia (blue-blind)

#C51F3C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33d36;
/* rgb */ color: rgb(179, 61, 54);
/* oklch */ color: oklch(52.7% 0.155 27.1);

Tailwind

colors: {
  custom: {
    50: '#d1796d',
    500: '#b33d36',
    950: '#000000',
  },
}

SCSS

$custom: #b33d36;
$custom-light: #d1796d;
$custom-dark: #000000;

JSON

{
  "hex": "#b33d36",
  "rgb": {
    "r": 179,
    "g": 61,
    "b": 54
  },
  "hsl": {
    "h": 3.36,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52722,
    "c": 0.15461,
    "h": 27.1
  },
  "luminance": 0.13188
}

Semantic roles & 50–950 ramp

primary

#B33D36

secondary

#80C1C5

accent

#D5DD4B

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33D36

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

Preview Lab → · Contrast checker → · Palette generator →