#B0243C#B0243C

#B0243C is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.8% C 0.174 H 17.6°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#B0243C
RGB	rgb(176, 36, 60)
HSL	hsl(350, 66%, 42%)
HSV	hsv(350, 80%, 69%)
CMYK	cmyk(0%, 79.5%, 65.9%, 31%)
CIE-LAB	lab(39.28, 55.89, 22.08)
CIE-LCH	lch(39.28, 60.09, 21.56°)
OKLab	oklab(49.84% 0.1663 0.0526)
OKLCH	oklch(49.84% 0.174 17.6)
XYZ	xyz(19.3531, 10.8211, 5.3437)
Luminance	0.1082 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B0243C #24B098

analogous

#B02482 #B0243C #B05224

triadic

#B0243C #3CB024 #243CB0

tetradic

#B0243C #82B024 #24B098 #5224B0

square

#B0243C #82B024 #24B098 #5224B0

split-complementary

#B0243C #24B052 #2482B0

monochromatic

#4A0F19 #7D1A2B #B0243C #D73A55 #E16D81

Accessibility & contrast

On white

6.64

#B0243C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#B0243C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B0243C

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B0243C	#FFFFFF	#000000	##FFFFFF
##B0243C	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4A3C

Deuteranopia (green-blind)

#716738

Tritanopia (blue-blind)

#C1002F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b0243c;
/* rgb */ color: rgb(176, 36, 60);
/* oklch */ color: oklch(49.8% 0.174 17.6);

Tailwind

colors: {
  custom: {
    50: '#cf6d71',
    500: '#b0243c',
    950: '#000000',
  },
}

SCSS

$custom: #b0243c;
$custom-light: #cf6d71;
$custom-dark: #000000;

JSON

{
  "hex": "#b0243c",
  "rgb": {
    "r": 176,
    "g": 36,
    "b": 60
  },
  "hsl": {
    "h": 349.714,
    "s": 66.038,
    "l": 41.569
  },
  "oklch": {
    "l": 0.49839,
    "c": 0.1744,
    "h": 17.6
  },
  "luminance": 0.10818
}

Semantic roles & 50–950 ramp

primary

#B0243C

secondary

#68C8B7

accent

#E9CC3F

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #B0243C

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

Preview Lab → · Contrast checker → · Palette generator →