#B3363D#B3363D

#B3363D is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.0% C 0.161 H 21.7°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#B3363D
RGB	rgb(179, 54, 61)
HSL	hsl(357, 54%, 46%)
HSV	hsv(357, 70%, 70%)
CMYK	cmyk(0%, 69.8%, 65.9%, 29.8%)
CIE-LAB	lab(42.10, 50.67, 25.15)
CIE-LCH	lch(42.10, 56.57, 26.39°)
OKLab	oklab(52.04% 0.1494 0.0596)
OKLCH	oklch(52.04% 0.161 21.7)
XYZ	xyz(20.7540, 12.5620, 5.7458)
Luminance	0.1256 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3363D #36B3AC

analogous

#B3367B #B3363D #B36D36

triadic

#B3363D #3DB336 #363DB3

tetradic

#B3363D #7BB336 #36B3AC #6D36B3

square

#B3363D #7BB336 #36B3AC #6D36B3

split-complementary

#B3363D #36B36D #367BB3

monochromatic

#551A1D #84282D #B3363D #CD5960 #DB888D

Accessibility & contrast

On white

5.98

#B3363D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#B3363D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3363D

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3363D	#FFFFFF	#000000	##FFFFFF
##B3363D	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58523C

Deuteranopia (green-blind)

#786D39

Tritanopia (blue-blind)

#C4123A

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b3363d;
/* rgb */ color: rgb(179, 54, 61);
/* oklch */ color: oklch(52.0% 0.161 21.7);

Tailwind

colors: {
  custom: {
    50: '#d17572',
    500: '#b3363d',
    950: '#000000',
  },
}

SCSS

$custom: #b3363d;
$custom-light: #d17572;
$custom-dark: #000000;

JSON

{
  "hex": "#b3363d",
  "rgb": {
    "r": 179,
    "g": 54,
    "b": 61
  },
  "hsl": {
    "h": 356.64,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52043,
    "c": 0.16086,
    "h": 21.7
  },
  "luminance": 0.12559
}

Semantic roles & 50–950 ramp

primary

#B3363D

secondary

#80C5C1

accent

#DDD54B

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B3363D

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

Preview Lab → · Contrast checker → · Palette generator →