#B13128#B13128

#B13128 is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.9% C 0.166 H 28.5°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#B13128
RGB	rgb(177, 49, 40)
HSL	hsl(4, 63%, 43%)
HSV	hsv(4, 77%, 69%)
CMYK	cmyk(0%, 72.3%, 77.4%, 30.6%)
CIE-LAB	lab(40.74, 50.93, 35.89)
CIE-LCH	lch(40.74, 62.30, 35.17°)
OKLab	oklab(50.87% 0.146 0.0792)
OKLCH	oklch(50.87% 0.166 28.5)
XYZ	xyz(19.6151, 11.6999, 3.2326)
Luminance	0.1170 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13128 #28A8B1

analogous

#B12863 #B13128 #B17628

triadic

#B13128 #28B131 #3128B1

tetradic

#B13128 #63B128 #28A8B1 #7628B1

square

#B13128 #63B128 #28A8B1 #7628B1

split-complementary

#B13128 #28B176 #2863B1

monochromatic

#4D1511 #7F231D #B13128 #D44C42 #E07B74

Accessibility & contrast

On white

6.29

#B13128 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#B13128 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13128

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13128	#FFFFFF	#000000	##FFFFFF
##B13128	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574E26

Deuteranopia (green-blind)

#776A23

Tritanopia (blue-blind)

#C30030

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b13128;
/* rgb */ color: rgb(177, 49, 40);
/* oklch */ color: oklch(50.9% 0.166 28.5);

Tailwind

colors: {
  custom: {
    50: '#d17263',
    500: '#b13128',
    950: '#000000',
  },
}

SCSS

$custom: #b13128;
$custom-light: #d17263;
$custom-dark: #000000;

JSON

{
  "hex": "#b13128",
  "rgb": {
    "r": 177,
    "g": 49,
    "b": 40
  },
  "hsl": {
    "h": 3.942,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.50866,
    "c": 0.16612,
    "h": 28.5
  },
  "luminance": 0.11697
}

Semantic roles & 50–950 ramp

primary

#B13128

secondary

#6EC1C7

accent

#DBE642

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160805

muted

#847B79

Preview Lab

Preview with #B13128

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

Preview Lab → · Contrast checker → · Palette generator →