#B13F2A#B13F2A

#B13F2A is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.5% C 0.153 H 32.6°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#B13F2A
RGB	rgb(177, 63, 42)
HSL	hsl(9, 62%, 43%)
HSV	hsv(9, 76%, 69%)
CMYK	cmyk(0%, 64.4%, 76.3%, 30.6%)
CIE-LAB	lab(42.87, 45.26, 37.06)
CIE-LCH	lch(42.87, 58.50, 39.31°)
OKLab	oklab(52.48% 0.1287 0.0823)
OKLCH	oklch(52.48% 0.153 32.6)
XYZ	xyz(20.3291, 13.0722, 3.6428)
Luminance	0.1307 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13F2A #2A9CB1

analogous

#B12A59 #B13F2A #B1822A

triadic

#B13F2A #2AB13F #3F2AB1

tetradic

#B13F2A #59B12A #2A9CB1 #822AB1

square

#B13F2A #59B12A #2A9CB1 #822AB1

split-complementary

#B13F2A #2AB182 #2A59B1

monochromatic

#4E1C13 #802D1E #B13F2A #D35B45 #DF8777

Accessibility & contrast

On white

5.81

#B13F2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#B13F2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13F2A

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13F2A	#FFFFFF	#000000	##FFFFFF
##B13F2A	1.00	5.81	3.61	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5527

Deuteranopia (green-blind)

#7B6F26

Tritanopia (blue-blind)

#C3213B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b13f2a;
/* rgb */ color: rgb(177, 63, 42);
/* oklch */ color: oklch(52.5% 0.153 32.6);

Tailwind

colors: {
  custom: {
    50: '#d07965',
    500: '#b13f2a',
    950: '#000000',
  },
}

SCSS

$custom: #b13f2a;
$custom-light: #d07965;
$custom-dark: #000000;

JSON

{
  "hex": "#b13f2a",
  "rgb": {
    "r": 177,
    "g": 63,
    "b": 42
  },
  "hsl": {
    "h": 9.333,
    "s": 61.644,
    "l": 42.941
  },
  "oklch": {
    "l": 0.52475,
    "c": 0.15277,
    "h": 32.6
  },
  "luminance": 0.13069
}

Semantic roles & 50–950 ramp

primary

#B13F2A

secondary

#70B9C6

accent

#CCE543

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150905

muted

#837B7A

Preview Lab

Preview with #B13F2A

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

Preview Lab → · Contrast checker → · Palette generator →