#B12837#B12837

#B12837 is a mid, vivid red. Relative luminance 0.111; OKLCH L 50.2% C 0.172 H 20.6°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#B12837
RGB	rgb(177, 40, 55)
HSL	hsl(353, 63%, 43%)
HSV	hsv(353, 77%, 69%)
CMYK	cmyk(0%, 77.4%, 68.9%, 30.6%)
CIE-LAB	lab(39.82, 54.70, 25.92)
CIE-LCH	lch(39.82, 60.53, 25.35°)
OKLab	oklab(50.25% 0.1613 0.0605)
OKLCH	oklch(50.25% 0.172 20.6)
XYZ	xyz(19.5820, 11.1435, 4.7335)
Luminance	0.1114 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B12837 #28B1A2

analogous

#B1287B #B12837 #B15E28

triadic

#B12837 #37B128 #2837B1

tetradic

#B12837 #7BB128 #28B1A2 #5E28B1

square

#B12837 #7BB128 #28B1A2 #5E28B1

split-complementary

#B12837 #28B15E #287BB1

monochromatic

#4D1118 #7F1D27 #B12837 #D44252 #E07480

Accessibility & contrast

On white

6.51

#B12837 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#B12837 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B12837

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B12837	#FFFFFF	#000000	##FFFFFF
##B12837	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514B36

Deuteranopia (green-blind)

#736833

Tritanopia (blue-blind)

#C3002F

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b12837;
/* rgb */ color: rgb(177, 40, 55);
/* oklch */ color: oklch(50.2% 0.172 20.6);

Tailwind

colors: {
  custom: {
    50: '#d06e6d',
    500: '#b12837',
    950: '#000000',
  },
}

SCSS

$custom: #b12837;
$custom-light: #d06e6d;
$custom-dark: #000000;

JSON

{
  "hex": "#b12837",
  "rgb": {
    "r": 177,
    "g": 40,
    "b": 55
  },
  "hsl": {
    "h": 353.431,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.5025,
    "c": 0.17224,
    "h": 20.6
  },
  "luminance": 0.11141
}

Semantic roles & 50–950 ramp

primary

#B12837

secondary

#6EC7BD

accent

#E6D442

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150807

muted

#837B7A

Preview Lab

Preview with #B12837

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

Preview Lab → · Contrast checker → · Palette generator →