#B1423A#B1423A

#B1423A is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.1% C 0.147 H 27.3°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#B1423A
RGB	rgb(177, 66, 58)
HSL	hsl(4, 51%, 46%)
HSV	hsv(4, 67%, 69%)
CMYK	cmyk(0%, 62.7%, 67.2%, 30.6%)
CIE-LAB	lab(43.58, 44.70, 28.71)
CIE-LCH	lch(43.58, 53.13, 32.71°)
OKLab	oklab(53.08% 0.1302 0.0672)
OKLCH	oklch(53.08% 0.147 27.3)
XYZ	xyz(20.8455, 13.5519, 5.5203)
Luminance	0.1355 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1423A #3AA9B1

analogous

#B13A6D #B1423A #B17D3A

triadic

#B1423A #3AB142 #423AB1

tetradic

#B1423A #6DB13A #3AA9B1 #7D3AB1

square

#B1423A #6DB13A #3AA9B1 #7D3AB1

split-complementary

#B1423A #3AB17D #3A6DB1

monochromatic

#55201C #83312B #B1423A #CA655E #D9918C

Accessibility & contrast

On white

5.66

#B1423A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#B1423A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1423A

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1423A	#FFFFFF	#000000	##FFFFFF
##B1423A	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5838

Deuteranopia (green-blind)

#7B7037

Tritanopia (blue-blind)

#C22941

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b1423a;
/* rgb */ color: rgb(177, 66, 58);
/* oklch */ color: oklch(53.1% 0.147 27.3);

Tailwind

colors: {
  custom: {
    50: '#cf7b70',
    500: '#b1423a',
    950: '#000000',
  },
}

SCSS

$custom: #b1423a;
$custom-light: #cf7b70;
$custom-dark: #000000;

JSON

{
  "hex": "#b1423a",
  "rgb": {
    "r": 177,
    "g": 66,
    "b": 58
  },
  "hsl": {
    "h": 4.034,
    "s": 50.638,
    "l": 46.078
  },
  "oklch": {
    "l": 0.53076,
    "c": 0.14651,
    "h": 27.3
  },
  "luminance": 0.13549
}

Semantic roles & 50–950 ramp

primary

#B1423A

secondary

#83C0C4

accent

#D1DA4E

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B1423A

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

Preview Lab → · Contrast checker → · Palette generator →