#B12738#B12738

#B12738 is a mid, vivid red. Relative luminance 0.111; OKLCH L 50.2% C 0.173 H 20.0°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#B12738
RGB	rgb(177, 39, 56)
HSL	hsl(353, 64%, 42%)
HSV	hsv(353, 78%, 69%)
CMYK	cmyk(0%, 78%, 68.4%, 30.6%)
CIE-LAB	lab(39.73, 55.06, 25.18)
CIE-LCH	lch(39.73, 60.55, 24.58°)
OKLab	oklab(50.19% 0.1626 0.059)
OKLCH	oklch(50.19% 0.173 20)
XYZ	xyz(19.5730, 11.0867, 4.8499)
Luminance	0.1108 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B12738 #27B1A0

analogous

#B1277D #B12738 #B15B27

triadic

#B12738 #38B127 #2738B1

tetradic

#B12738 #7DB127 #27B1A0 #5B27B1

square

#B12738 #7DB127 #27B1A0 #5B27B1

split-complementary

#B12738 #27B15B #277DB1

monochromatic

#4D1118 #7F1C28 #B12738 #D54053 #E07280

Accessibility & contrast

On white

6.53

#B12738 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#B12738 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B12738

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B12738	#FFFFFF	#000000	##FFFFFF
##B12738	1.00	6.53	3.22	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504B38

Deuteranopia (green-blind)

#736834

Tritanopia (blue-blind)

#C3002F

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b12738;
/* rgb */ color: rgb(177, 39, 56);
/* oklch */ color: oklch(50.2% 0.173 20.0);

Tailwind

colors: {
  custom: {
    50: '#d06e6e',
    500: '#b12738',
    950: '#000000',
  },
}

SCSS

$custom: #b12738;
$custom-light: #d06e6e;
$custom-dark: #000000;

JSON

{
  "hex": "#b12738",
  "rgb": {
    "r": 177,
    "g": 39,
    "b": 56
  },
  "hsl": {
    "h": 352.609,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.50185,
    "c": 0.17302,
    "h": 20
  },
  "luminance": 0.11084
}

Semantic roles & 50–950 ramp

primary

#B12738

secondary

#6DC7BC

accent

#E7D241

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150807

muted

#837B7A

Preview Lab

Preview with #B12738

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

Preview Lab → · Contrast checker → · Palette generator →