#B03E28#B03E28

#B03E28 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.2% C 0.153 H 32.9°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#B03E28
RGB	rgb(176, 62, 40)
HSL	hsl(10, 63%, 42%)
HSV	hsv(10, 77%, 69%)
CMYK	cmyk(0%, 64.8%, 77.3%, 31%)
CIE-LAB	lab(42.51, 45.27, 37.71)
CIE-LCH	lch(42.51, 58.92, 39.80°)
OKLab	oklab(52.16% 0.1285 0.0832)
OKLCH	oklch(52.16% 0.153 32.9)
XYZ	xyz(20.0123, 12.8314, 3.4300)
Luminance	0.1283 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03E28 #289AB0

analogous

#B02856 #B03E28 #B08228

triadic

#B03E28 #28B03E #3E28B0

tetradic

#B03E28 #56B028 #289AB0 #8228B0

square

#B03E28 #56B028 #289AB0 #8228B0

split-complementary

#B03E28 #28B082 #2856B0

monochromatic

#4C1B11 #7E2C1D #B03E28 #D45941 #DF8573

Accessibility & contrast

On white

5.89

#B03E28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B03E28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03E28

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03E28	#FFFFFF	#000000	##FFFFFF
##B03E28	1.00	5.89	3.57	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5425

Deuteranopia (green-blind)

#7A6E24

Tritanopia (blue-blind)

#C21F3A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b03e28;
/* rgb */ color: rgb(176, 62, 40);
/* oklch */ color: oklch(52.2% 0.153 32.9);

Tailwind

colors: {
  custom: {
    50: '#d07963',
    500: '#b03e28',
    950: '#000000',
  },
}

SCSS

$custom: #b03e28;
$custom-light: #d07963;
$custom-dark: #000000;

JSON

{
  "hex": "#b03e28",
  "rgb": {
    "r": 176,
    "g": 62,
    "b": 40
  },
  "hsl": {
    "h": 9.706,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.52162,
    "c": 0.15307,
    "h": 32.9
  },
  "luminance": 0.12829
}

Semantic roles & 50–950 ramp

primary

#B03E28

secondary

#6DB8C6

accent

#CBE642

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150905

muted

#837B7A

Preview Lab

Preview with #B03E28

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

Preview Lab → · Contrast checker → · Palette generator →