#B63636#B63636

#B63636 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.4% C 0.165 H 24.9°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#B63636
RGB	rgb(182, 54, 54)
HSL	hsl(0, 54%, 46%)
HSV	hsv(0, 70%, 71%)
CMYK	cmyk(0%, 70.3%, 70.3%, 28.6%)
CIE-LAB	lab(42.54, 51.27, 30.04)
CIE-LCH	lch(42.54, 59.42, 30.36°)
OKLab	oklab(52.44% 0.1495 0.0693)
OKLCH	oklch(52.44% 0.165 24.9)
XYZ	xyz(21.2787, 12.8529, 4.8497)
Luminance	0.1285 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63636 #36B6B6

analogous

#B63676 #B63636 #B67636

triadic

#B63636 #36B636 #3636B6

tetradic

#B63636 #76B636 #36B6B6 #7636B6

square

#B63636 #76B636 #36B6B6 #7636B6

split-complementary

#B63636 #36B676 #3676B6

monochromatic

#581A1A #872828 #B63636 #CE5B5B #DC8A8A

Accessibility & contrast

On white

5.88

#B63636 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B63636 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63636

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63636	#FFFFFF	#000000	##FFFFFF
##B63636	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5335

Deuteranopia (green-blind)

#7A6F32

Tritanopia (blue-blind)

#C80A38

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b63636;
/* rgb */ color: rgb(182, 54, 54);
/* oklch */ color: oklch(52.4% 0.165 24.9);

Tailwind

colors: {
  custom: {
    50: '#d4756d',
    500: '#b63636',
    950: '#000000',
  },
}

SCSS

$custom: #b63636;
$custom-light: #d4756d;
$custom-dark: #000000;

JSON

{
  "hex": "#b63636",
  "rgb": {
    "r": 182,
    "g": 54,
    "b": 54
  },
  "hsl": {
    "h": 0,
    "s": 54.237,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52443,
    "c": 0.16475,
    "h": 24.9
  },
  "luminance": 0.1285
}

Semantic roles & 50–950 ramp

primary

#B63636

secondary

#81C6C6

accent

#DEDE4A

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B63636

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

Preview Lab → · Contrast checker → · Palette generator →