#B0243D#B0243D

#B0243D is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.9% C 0.174 H 17.1°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#B0243D
RGB	rgb(176, 36, 61)
HSL	hsl(349, 66%, 42%)
HSV	hsv(349, 80%, 69%)
CMYK	cmyk(0%, 79.5%, 65.3%, 31%)
CIE-LAB	lab(39.30, 55.95, 21.48)
CIE-LCH	lch(39.30, 59.93, 21.00°)
OKLab	oklab(49.86% 0.1667 0.0513)
OKLCH	oklch(49.86% 0.174 17.1)
XYZ	xyz(19.3798, 10.8317, 5.4843)
Luminance	0.1083 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B0243D #24B097

analogous

#B02483 #B0243D #B05124

triadic

#B0243D #3DB024 #243DB0

tetradic

#B0243D #83B024 #24B097 #5124B0

square

#B0243D #83B024 #24B097 #5124B0

split-complementary

#B0243D #24B051 #2483B0

monochromatic

#4A0F1A #7D1A2B #B0243D #D73A56 #E16D82

Accessibility & contrast

On white

6.63

#B0243D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#B0243D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B0243D

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B0243D	#FFFFFF	#000000	##FFFFFF
##B0243D	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D4A3D

Deuteranopia (green-blind)

#716739

Tritanopia (blue-blind)

#C1002F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b0243d;
/* rgb */ color: rgb(176, 36, 61);
/* oklch */ color: oklch(49.9% 0.174 17.1);

Tailwind

colors: {
  custom: {
    50: '#cf6d72',
    500: '#b0243d',
    950: '#000000',
  },
}

SCSS

$custom: #b0243d;
$custom-light: #cf6d72;
$custom-dark: #000000;

JSON

{
  "hex": "#b0243d",
  "rgb": {
    "r": 176,
    "g": 36,
    "b": 61
  },
  "hsl": {
    "h": 349.286,
    "s": 66.038,
    "l": 41.569
  },
  "oklch": {
    "l": 0.49859,
    "c": 0.17441,
    "h": 17.1
  },
  "luminance": 0.10829
}

Semantic roles & 50–950 ramp

primary

#B0243D

secondary

#68C8B7

accent

#E9CB3F

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #B0243D

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

Preview Lab → · Contrast checker → · Palette generator →