#B13828#B13828

#B13828 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.6% C 0.160 H 30.7°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#B13828
RGB	rgb(177, 56, 40)
HSL	hsl(7, 63%, 43%)
HSV	hsv(7, 77%, 69%)
CMYK	cmyk(0%, 68.4%, 77.4%, 30.6%)
CIE-LAB	lab(41.74, 48.18, 36.96)
CIE-LCH	lch(41.74, 60.72, 37.49°)
OKLab	oklab(51.62% 0.1374 0.0815)
OKLCH	oklch(51.62% 0.16 30.7)
XYZ	xyz(19.9309, 12.3316, 3.3378)
Luminance	0.1233 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13828 #28A1B1

analogous

#B1285D #B13828 #B17C28

triadic

#B13828 #28B138 #3828B1

tetradic

#B13828 #5DB128 #28A1B1 #7C28B1

square

#B13828 #5DB128 #28A1B1 #7C28B1

split-complementary

#B13828 #28B17C #285DB1

monochromatic

#4D1811 #7F281D #B13828 #D45342 #E08074

Accessibility & contrast

On white

6.06

#B13828 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#B13828 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13828

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13828	#FFFFFF	#000000	##FFFFFF
##B13828	1.00	6.06	3.47	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5225

Deuteranopia (green-blind)

#796C23

Tritanopia (blue-blind)

#C31135

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b13828;
/* rgb */ color: rgb(177, 56, 40);
/* oklch */ color: oklch(51.6% 0.160 30.7);

Tailwind

colors: {
  custom: {
    50: '#d17663',
    500: '#b13828',
    950: '#000000',
  },
}

SCSS

$custom: #b13828;
$custom-light: #d17663;
$custom-dark: #000000;

JSON

{
  "hex": "#b13828",
  "rgb": {
    "r": 177,
    "g": 56,
    "b": 40
  },
  "hsl": {
    "h": 7.007,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.51617,
    "c": 0.15978,
    "h": 30.7
  },
  "luminance": 0.12329
}

Semantic roles & 50–950 ramp

primary

#B13828

secondary

#6EBCC7

accent

#D3E642

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B13828

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

Preview Lab → · Contrast checker → · Palette generator →