#B13028#B13028

#B13028 is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.8% C 0.167 H 28.2°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#B13028
RGB	rgb(177, 48, 40)
HSL	hsl(4, 63%, 43%)
HSV	hsv(4, 77%, 69%)
CMYK	cmyk(0%, 72.9%, 77.4%, 30.6%)
CIE-LAB	lab(40.60, 51.30, 35.75)
CIE-LCH	lch(40.60, 62.52, 34.87°)
OKLab	oklab(50.77% 0.1472 0.0789)
OKLCH	oklch(50.77% 0.167 28.2)
XYZ	xyz(19.5737, 11.6172, 3.2188)
Luminance	0.1161 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13028 #28A9B1

analogous

#B12864 #B13028 #B17528

triadic

#B13028 #28B130 #3028B1

tetradic

#B13028 #64B128 #28A9B1 #7528B1

square

#B13028 #64B128 #28A9B1 #7528B1

split-complementary

#B13028 #28B175 #2864B1

monochromatic

#4D1511 #7F221D #B13028 #D44A42 #E07A74

Accessibility & contrast

On white

6.32

#B13028 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#B13028 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13028

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13028	#FFFFFF	#000000	##FFFFFF
##B13028	1.00	6.32	3.32	6.32
#FFFFFF	6.32	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564E26

Deuteranopia (green-blind)

#766A23

Tritanopia (blue-blind)

#C3002F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b13028;
/* rgb */ color: rgb(177, 48, 40);
/* oklch */ color: oklch(50.8% 0.167 28.2);

Tailwind

colors: {
  custom: {
    50: '#d17263',
    500: '#b13028',
    950: '#000000',
  },
}

SCSS

$custom: #b13028;
$custom-light: #d17263;
$custom-dark: #000000;

JSON

{
  "hex": "#b13028",
  "rgb": {
    "r": 177,
    "g": 48,
    "b": 40
  },
  "hsl": {
    "h": 3.504,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.50766,
    "c": 0.167,
    "h": 28.2
  },
  "luminance": 0.11614
}

Semantic roles & 50–950 ramp

primary

#B13028

secondary

#6EC2C7

accent

#DDE642

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160805

muted

#847B79

Preview Lab

Preview with #B13028

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

Preview Lab → · Contrast checker → · Palette generator →