#B13F27#B13F27

#B13F27 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.4% C 0.153 H 33.6°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#B13F27
RGB	rgb(177, 63, 39)
HSL	hsl(10, 64%, 42%)
HSV	hsv(10, 78%, 69%)
CMYK	cmyk(0%, 64.4%, 78%, 30.6%)
CIE-LAB	lab(42.84, 45.14, 38.65)
CIE-LCH	lch(42.84, 59.43, 40.57°)
OKLab	oklab(52.44% 0.1278 0.0849)
OKLCH	oklch(52.44% 0.153 33.6)
XYZ	xyz(20.2774, 13.0515, 3.3705)
Luminance	0.1305 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13F27 #2799B1

analogous

#B12754 #B13F27 #B18427

triadic

#B13F27 #27B13F #3F27B1

tetradic

#B13F27 #54B127 #2799B1 #8427B1

square

#B13F27 #54B127 #2799B1 #8427B1

split-complementary

#B13F27 #27B184 #2754B1

monochromatic

#4D1B11 #7F2D1C #B13F27 #D55A40 #E08572

Accessibility & contrast

On white

5.82

#B13F27 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#B13F27 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13F27

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13F27	#FFFFFF	#000000	##FFFFFF
##B13F27	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5524

Deuteranopia (green-blind)

#7B6F23

Tritanopia (blue-blind)

#C3203A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b13f27;
/* rgb */ color: rgb(177, 63, 39);
/* oklch */ color: oklch(52.4% 0.153 33.6);

Tailwind

colors: {
  custom: {
    50: '#d07963',
    500: '#b13f27',
    950: '#000000',
  },
}

SCSS

$custom: #b13f27;
$custom-light: #d07963;
$custom-dark: #000000;

JSON

{
  "hex": "#b13f27",
  "rgb": {
    "r": 177,
    "g": 63,
    "b": 39
  },
  "hsl": {
    "h": 10.435,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.52442,
    "c": 0.15342,
    "h": 33.6
  },
  "luminance": 0.13049
}

Semantic roles & 50–950 ramp

primary

#B13F27

secondary

#6DB7C7

accent

#CAE741

background

#FDF7F5

surface

#FBEEEA

border

#D4C9C6

text

#150905

muted

#837B79

Preview Lab

Preview with #B13F27

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

Preview Lab → · Contrast checker → · Palette generator →