#B01D40#B01D40

#B01D40 is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.4% C 0.180 H 14.7°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#B01D40
RGB	rgb(176, 29, 64)
HSL	hsl(346, 72%, 40%)
HSV	hsv(346, 84%, 69%)
CMYK	cmyk(0%, 83.5%, 63.6%, 31%)
CIE-LAB	lab(38.69, 57.99, 18.80)
CIE-LCH	lch(38.69, 60.96, 17.96°)
OKLab	oklab(49.43% 0.1739 0.0455)
OKLCH	oklch(49.43% 0.18 14.7)
XYZ	xyz(19.2714, 10.4820, 5.8580)
Luminance	0.1048 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B01D40 #1DB08D

analogous

#B01D8A #B01D40 #B0431D

triadic

#B01D40 #40B01D #1D40B0

tetradic

#B01D40 #8AB01D #1DB08D #431DB0

square

#B01D40 #8AB01D #1DB08D #431DB0

split-complementary

#B01D40 #1DB043 #1D8AB0

monochromatic

#470C1A #7B142D #B01D40 #DD2E57 #E56281

Accessibility & contrast

On white

6.78

#B01D40 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#B01D40 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B01D40

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B01D40	#FFFFFF	#000000	##FFFFFF
##B01D40	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4840

Deuteranopia (green-blind)

#6F663C

Tritanopia (blue-blind)

#C1002D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #b01d40;
/* rgb */ color: rgb(176, 29, 64);
/* oklch */ color: oklch(49.4% 0.180 14.7);

Tailwind

colors: {
  custom: {
    50: '#cf6b74',
    500: '#b01d40',
    950: '#000000',
  },
}

SCSS

$custom: #b01d40;
$custom-light: #cf6b74;
$custom-dark: #000000;

JSON

{
  "hex": "#b01d40",
  "rgb": {
    "r": 176,
    "g": 29,
    "b": 64
  },
  "hsl": {
    "h": 345.714,
    "s": 71.707,
    "l": 40.196
  },
  "oklch": {
    "l": 0.49433,
    "c": 0.17974,
    "h": 14.7
  },
  "luminance": 0.10479
}

Semantic roles & 50–950 ramp

primary

#B01D40

secondary

#5FCAB0

accent

#EEC339

background

#FDF6F7

surface

#FBECED

border

#D4C7C8

text

#150808

muted

#837A7B

Preview Lab

Preview with #B01D40

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

Preview Lab → · Contrast checker → · Palette generator →