#B1333B#B1333B

#B1333B is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.3% C 0.162 H 21.6°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#B1333B
RGB	rgb(177, 51, 59)
HSL	hsl(356, 55%, 45%)
HSV	hsv(356, 71%, 69%)
CMYK	cmyk(0%, 71.2%, 66.7%, 30.6%)
CIE-LAB	lab(41.27, 51.07, 25.26)
CIE-LCH	lch(41.27, 56.98, 26.31°)
OKLab	oklab(51.35% 0.1505 0.0596)
OKLCH	oklch(51.35% 0.162 21.6)
XYZ	xyz(20.1068, 12.0335, 5.4008)
Luminance	0.1203 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1333B #33B1A9

analogous

#B1337A #B1333B #B16A33

triadic

#B1333B #3BB133 #333BB1

tetradic

#B1333B #7AB133 #33B1A9 #6A33B1

square

#B1333B #7AB133 #33B1A9 #6A33B1

split-complementary

#B1333B #33B16A #337AB1

monochromatic

#52181B #81252B #B1333B #CE545B #DB8389

Accessibility & contrast

On white

6.17

#B1333B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#B1333B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1333B

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1333B	#FFFFFF	#000000	##FFFFFF
##B1333B	1.00	6.17	3.41	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#56503A

Deuteranopia (green-blind)

#766B37

Tritanopia (blue-blind)

#C20937

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b1333b;
/* rgb */ color: rgb(177, 51, 59);
/* oklch */ color: oklch(51.3% 0.162 21.6);

Tailwind

colors: {
  custom: {
    50: '#d07371',
    500: '#b1333b',
    950: '#000000',
  },
}

SCSS

$custom: #b1333b;
$custom-light: #d07371;
$custom-dark: #000000;

JSON

{
  "hex": "#b1333b",
  "rgb": {
    "r": 177,
    "g": 51,
    "b": 59
  },
  "hsl": {
    "h": 356.19,
    "s": 55.263,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51348,
    "c": 0.16191,
    "h": 21.6
  },
  "luminance": 0.12031
}

Semantic roles & 50–950 ramp

primary

#B1333B

secondary

#7BC5C0

accent

#DFD549

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B1333B

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

Preview Lab → · Contrast checker → · Palette generator →