#B12828#B12828

#B12828 is a mid, vivid red. Relative luminance 0.110; OKLCH L 50.0% C 0.174 H 26.2°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#B12828
RGB	rgb(177, 40, 40)
HSL	hsl(0, 63%, 43%)
HSV	hsv(0, 77%, 69%)
CMYK	cmyk(0%, 77.4%, 77.4%, 30.6%)
CIE-LAB	lab(39.62, 54.04, 34.69)
CIE-LCH	lch(39.62, 64.22, 32.70°)
OKLab	oklab(50.03% 0.1558 0.0766)
OKLCH	oklch(50.03% 0.174 26.2)
XYZ	xyz(19.2756, 11.0209, 3.1194)
Luminance	0.1102 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B12828 #28B1B1

analogous

#B1286C #B12828 #B16C28

triadic

#B12828 #28B128 #2828B1

tetradic

#B12828 #6CB128 #28B1B1 #6C28B1

square

#B12828 #6CB128 #28B1B1 #6C28B1

split-complementary

#B12828 #28B16C #286CB1

monochromatic

#4D1111 #7F1D1D #B12828 #D44242 #E07474

Accessibility & contrast

On white

6.56

#B12828 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#B12828 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B12828

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B12828	#FFFFFF	#000000	##FFFFFF
##B12828	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524A26

Deuteranopia (green-blind)

#746822

Tritanopia (blue-blind)

#C3002A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b12828;
/* rgb */ color: rgb(177, 40, 40);
/* oklch */ color: oklch(50.0% 0.174 26.2);

Tailwind

colors: {
  custom: {
    50: '#d16e62',
    500: '#b12828',
    950: '#000000',
  },
}

SCSS

$custom: #b12828;
$custom-light: #d16e62;
$custom-dark: #000000;

JSON

{
  "hex": "#b12828",
  "rgb": {
    "r": 177,
    "g": 40,
    "b": 40
  },
  "hsl": {
    "h": 0,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.50032,
    "c": 0.17363,
    "h": 26.2
  },
  "luminance": 0.11018
}

Semantic roles & 50–950 ramp

primary

#B12828

secondary

#6EC7C7

accent

#E6E642

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160805

muted

#847B79

Preview Lab

Preview with #B12828

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

Preview Lab → · Contrast checker → · Palette generator →