#B13F28#B13F28

#B13F28 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.5% C 0.153 H 33.3°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#B13F28
RGB	rgb(177, 63, 40)
HSL	hsl(10, 63%, 43%)
HSV	hsv(10, 77%, 69%)
CMYK	cmyk(0%, 64.4%, 77.4%, 30.6%)
CIE-LAB	lab(42.85, 45.18, 38.13)
CIE-LCH	lch(42.85, 59.12, 40.16°)
OKLab	oklab(52.45% 0.1281 0.0841)
OKLCH	oklch(52.45% 0.153 33.3)
XYZ	xyz(20.2942, 13.0582, 3.4589)
Luminance	0.1305 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13F28 #289AB1

analogous

#B12855 #B13F28 #B18428

triadic

#B13F28 #28B13F #3F28B1

tetradic

#B13F28 #55B128 #289AB1 #8428B1

square

#B13F28 #55B128 #289AB1 #8428B1

split-complementary

#B13F28 #28B184 #2855B1

monochromatic

#4D1B11 #7F2D1D #B13F28 #D45A42 #E08674

Accessibility & contrast

On white

5.82

#B13F28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#B13F28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13F28

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13F28	#FFFFFF	#000000	##FFFFFF
##B13F28	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)

#5F5525

Deuteranopia (green-blind)

#7B6F24

Tritanopia (blue-blind)

#C3213A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b13f28;
/* rgb */ color: rgb(177, 63, 40);
/* oklch */ color: oklch(52.5% 0.153 33.3);

Tailwind

colors: {
  custom: {
    50: '#d07963',
    500: '#b13f28',
    950: '#000000',
  },
}

SCSS

$custom: #b13f28;
$custom-light: #d07963;
$custom-dark: #000000;

JSON

{
  "hex": "#b13f28",
  "rgb": {
    "r": 177,
    "g": 63,
    "b": 40
  },
  "hsl": {
    "h": 10.073,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.52453,
    "c": 0.1532,
    "h": 33.3
  },
  "luminance": 0.13055
}

Semantic roles & 50–950 ramp

primary

#B13F28

secondary

#6EB8C7

accent

#CBE642

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150905

muted

#837B7A

Preview Lab

Preview with #B13F28

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

Preview Lab → · Contrast checker → · Palette generator →