#B12728#B12728

#B12728 is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.9% C 0.174 H 26.0°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#B12728
RGB	rgb(177, 39, 40)
HSL	hsl(360, 64%, 42%)
HSV	hsv(360, 78%, 69%)
CMYK	cmyk(0%, 78%, 77.4%, 30.6%)
CIE-LAB	lab(39.50, 54.35, 34.57)
CIE-LCH	lch(39.50, 64.41, 32.46°)
OKLab	oklab(49.95% 0.1568 0.0763)
OKLCH	oklch(49.95% 0.174 26)
XYZ	xyz(19.2423, 10.9544, 3.1083)
Luminance	0.1095 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B12728 #27B1B0

analogous

#B1276D #B12728 #B16B27

triadic

#B12728 #28B127 #2728B1

tetradic

#B12728 #6DB127 #27B1B0 #6B27B1

square

#B12728 #6DB127 #27B1B0 #6B27B1

split-complementary

#B12728 #27B16B #276DB1

monochromatic

#4D1111 #7F1C1D #B12728 #D54041 #E07273

Accessibility & contrast

On white

6.58

#B12728 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#B12728 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B12728

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B12728	#FFFFFF	#000000	##FFFFFF
##B12728	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524A26

Deuteranopia (green-blind)

#746822

Tritanopia (blue-blind)

#C30029

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b12728;
/* rgb */ color: rgb(177, 39, 40);
/* oklch */ color: oklch(49.9% 0.174 26.0);

Tailwind

colors: {
  custom: {
    50: '#d16e62',
    500: '#b12728',
    950: '#000000',
  },
}

SCSS

$custom: #b12728;
$custom-light: #d16e62;
$custom-dark: #000000;

JSON

{
  "hex": "#b12728",
  "rgb": {
    "r": 177,
    "g": 39,
    "b": 40
  },
  "hsl": {
    "h": 359.565,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.49948,
    "c": 0.17441,
    "h": 26
  },
  "luminance": 0.10951
}

Semantic roles & 50–950 ramp

primary

#B12728

secondary

#6DC7C6

accent

#E7E641

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160805

muted

#847B79

Preview Lab

Preview with #B12728

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

Preview Lab → · Contrast checker → · Palette generator →