#B1303E#B1303E

#B1303E is a mid, vivid red. Relative luminance 0.118; OKLCH L 51.1% C 0.165 H 19.4°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#B1303E
RGB	rgb(177, 48, 62)
HSL	hsl(353, 57%, 44%)
HSV	hsv(353, 73%, 69%)
CMYK	cmyk(0%, 72.9%, 65%, 30.6%)
CIE-LAB	lab(40.92, 52.37, 22.96)
CIE-LCH	lch(40.92, 57.18, 23.68°)
OKLab	oklab(51.1% 0.1553 0.0548)
OKLCH	oklch(51.1% 0.165 19.4)
XYZ	xyz(20.0600, 11.8118, 5.7801)
Luminance	0.1181 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1303E #30B1A3

analogous

#B1307F #B1303E #B16330

triadic

#B1303E #3EB130 #303EB1

tetradic

#B1303E #7FB130 #30B1A3 #6330B1

square

#B1303E #7FB130 #30B1A3 #6330B1

split-complementary

#B1303E #30B163 #307FB1

monochromatic

#51161C #81232D #B1303E #CF4F5D #DC7F89

Accessibility & contrast

On white

6.25

#B1303E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#B1303E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1303E

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1303E	#FFFFFF	#000000	##FFFFFF
##B1303E	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544F3E

Deuteranopia (green-blind)

#746A3A

Tritanopia (blue-blind)

#C20036

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b1303e;
/* rgb */ color: rgb(177, 48, 62);
/* oklch */ color: oklch(51.1% 0.165 19.4);

Tailwind

colors: {
  custom: {
    50: '#d07273',
    500: '#b1303e',
    950: '#000000',
  },
}

SCSS

$custom: #b1303e;
$custom-light: #d07273;
$custom-dark: #000000;

JSON

{
  "hex": "#b1303e",
  "rgb": {
    "r": 177,
    "g": 48,
    "b": 62
  },
  "hsl": {
    "h": 353.488,
    "s": 57.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.51101,
    "c": 0.16467,
    "h": 19.4
  },
  "luminance": 0.11809
}

Semantic roles & 50–950 ramp

primary

#B1303E

secondary

#78C5BD

accent

#E1D047

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150808

muted

#837B7B

Preview Lab

Preview with #B1303E

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

Preview Lab → · Contrast checker → · Palette generator →