#B01D3D#B01D3D

#B01D3D is a mid, vivid red. Relative luminance 0.104; OKLCH L 49.4% C 0.180 H 16.0°. Best body text is #FFFFFF at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#B01D3D
RGB	rgb(176, 29, 61)
HSL	hsl(347, 72%, 40%)
HSV	hsv(347, 84%, 69%)
CMYK	cmyk(0%, 83.5%, 65.3%, 31%)
CIE-LAB	lab(38.64, 57.82, 20.63)
CIE-LCH	lch(38.64, 61.39, 19.63°)
OKLab	oklab(49.37% 0.1727 0.0494)
OKLCH	oklch(49.37% 0.18 16)
XYZ	xyz(19.1883, 10.4487, 5.4204)
Luminance	0.1045 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B01D3D #1DB090

analogous

#B01D86 #B01D3D #B0471D

triadic

#B01D3D #3DB01D #1D3DB0

tetradic

#B01D3D #86B01D #1DB090 #471DB0

square

#B01D3D #86B01D #1DB090 #471DB0

split-complementary

#B01D3D #1DB047 #1D86B0

monochromatic

#470C19 #7B142B #B01D3D #DD2E54 #E5627F

Accessibility & contrast

On white

6.80

#B01D3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#B01D3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B01D3D

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B01D3D	#FFFFFF	#000000	##FFFFFF
##B01D3D	1.00	6.80	3.09	6.80
#FFFFFF	6.80	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B483D

Deuteranopia (green-blind)

#6F6639

Tritanopia (blue-blind)

#C1002C

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #b01d3d;
/* rgb */ color: rgb(176, 29, 61);
/* oklch */ color: oklch(49.4% 0.180 16.0);

Tailwind

colors: {
  custom: {
    50: '#d06b72',
    500: '#b01d3d',
    950: '#000000',
  },
}

SCSS

$custom: #b01d3d;
$custom-light: #d06b72;
$custom-dark: #000000;

JSON

{
  "hex": "#b01d3d",
  "rgb": {
    "r": 176,
    "g": 29,
    "b": 61
  },
  "hsl": {
    "h": 346.939,
    "s": 71.707,
    "l": 40.196
  },
  "oklch": {
    "l": 0.49371,
    "c": 0.17963,
    "h": 16
  },
  "luminance": 0.10446
}

Semantic roles & 50–950 ramp

primary

#B01D3D

secondary

#5FCAB3

accent

#EEC739

background

#FDF6F6

surface

#FBECEC

border

#D4C7C7

text

#150807

muted

#837A7A

Preview Lab

Preview with #B01D3D

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

Preview Lab → · Contrast checker → · Palette generator →