#B13F3A#B13F3A

#B13F3A is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.7% C 0.150 H 26.1°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#B13F3A
RGB	rgb(177, 63, 58)
HSL	hsl(3, 51%, 46%)
HSV	hsv(3, 67%, 69%)
CMYK	cmyk(0%, 64.4%, 67.2%, 30.6%)
CIE-LAB	lab(43.08, 46.05, 28.09)
CIE-LCH	lch(43.08, 53.95, 31.38°)
OKLab	oklab(52.7% 0.1344 0.0658)
OKLCH	oklch(52.7% 0.15 26.1)
XYZ	xyz(20.6748, 13.2105, 5.4634)
Luminance	0.1321 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13F3A #3AACB1

analogous

#B13A70 #B13F3A #B17A3A

triadic

#B13F3A #3AB13F #3F3AB1

tetradic

#B13F3A #70B13A #3AACB1 #7A3AB1

square

#B13F3A #70B13A #3AACB1 #7A3AB1

split-complementary

#B13F3A #3AB17A #3A70B1

monochromatic

#551E1C #832F2B #B13F3A #CA635E #D98F8C

Accessibility & contrast

On white

5.77

#B13F3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B13F3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13F3A

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13F3A	#FFFFFF	#000000	##FFFFFF
##B13F3A	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5639

Deuteranopia (green-blind)

#7A6F37

Tritanopia (blue-blind)

#C2243F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b13f3a;
/* rgb */ color: rgb(177, 63, 58);
/* oklch */ color: oklch(52.7% 0.150 26.1);

Tailwind

colors: {
  custom: {
    50: '#cf7a70',
    500: '#b13f3a',
    950: '#000000',
  },
}

SCSS

$custom: #b13f3a;
$custom-light: #cf7a70;
$custom-dark: #000000;

JSON

{
  "hex": "#b13f3a",
  "rgb": {
    "r": 177,
    "g": 63,
    "b": 58
  },
  "hsl": {
    "h": 2.521,
    "s": 50.638,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52697,
    "c": 0.14969,
    "h": 26.1
  },
  "luminance": 0.13208
}

Semantic roles & 50–950 ramp

primary

#B13F3A

secondary

#83C1C4

accent

#D4DA4E

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B13F3A

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

Preview Lab → · Contrast checker → · Palette generator →