#B13727#B13727

#B13727 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.5% C 0.161 H 30.7°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#B13727
RGB	rgb(177, 55, 39)
HSL	hsl(7, 64%, 42%)
HSV	hsv(7, 78%, 69%)
CMYK	cmyk(0%, 68.9%, 78%, 30.6%)
CIE-LAB	lab(41.58, 48.55, 37.34)
CIE-LCH	lch(41.58, 61.25, 37.56°)
OKLab	oklab(51.49% 0.1384 0.0821)
OKLCH	oklch(51.49% 0.161 30.7)
XYZ	xyz(19.8661, 12.2289, 3.2334)
Luminance	0.1223 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13727 #27A1B1

analogous

#B1275C #B13727 #B17C27

triadic

#B13727 #27B137 #3727B1

tetradic

#B13727 #5CB127 #27A1B1 #7C27B1

square

#B13727 #5CB127 #27A1B1 #7C27B1

split-complementary

#B13727 #27B17C #275CB1

monochromatic

#4D1811 #7F271C #B13727 #D55140 #E07F72

Accessibility & contrast

On white

6.10

#B13727 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#B13727 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13727

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13727	#FFFFFF	#000000	##FFFFFF
##B13727	1.00	6.10	3.45	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5124

Deuteranopia (green-blind)

#796C22

Tritanopia (blue-blind)

#C30D34

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b13727;
/* rgb */ color: rgb(177, 55, 39);
/* oklch */ color: oklch(51.5% 0.161 30.7);

Tailwind

colors: {
  custom: {
    50: '#d17562',
    500: '#b13727',
    950: '#000000',
  },
}

SCSS

$custom: #b13727;
$custom-light: #d17562;
$custom-dark: #000000;

JSON

{
  "hex": "#b13727",
  "rgb": {
    "r": 177,
    "g": 55,
    "b": 39
  },
  "hsl": {
    "h": 6.957,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.51493,
    "c": 0.16089,
    "h": 30.7
  },
  "luminance": 0.12226
}

Semantic roles & 50–950 ramp

primary

#B13727

secondary

#6DBDC7

accent

#D4E741

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B13727

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

Preview Lab → · Contrast checker → · Palette generator →