#B03F36#B03F36

#B03F36 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.5% C 0.149 H 27.9°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#B03F36
RGB	rgb(176, 63, 54)
HSL	hsl(4, 53%, 45%)
HSV	hsv(4, 69%, 69%)
CMYK	cmyk(0%, 64.2%, 69.3%, 31%)
CIE-LAB	lab(42.84, 45.48, 30.14)
CIE-LCH	lch(42.84, 54.56, 33.53°)
OKLab	oklab(52.47% 0.132 0.0698)
OKLCH	oklch(52.47% 0.149 27.9)
XYZ	xyz(20.3500, 13.0543, 4.9375)
Luminance	0.1305 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03F36 #36A7B0

analogous

#B0366A #B03F36 #B07C36

triadic

#B03F36 #36B03F #3F36B0

tetradic

#B03F36 #6AB036 #36A7B0 #7C36B0

square

#B03F36 #6AB036 #36A7B0 #7C36B0

split-complementary

#B03F36 #36B07C #366AB0

monochromatic

#521D19 #812E28 #B03F36 #CC6058 #DA8D86

Accessibility & contrast

On white

5.82

#B03F36 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#B03F36 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03F36

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03F36	#FFFFFF	#000000	##FFFFFF
##B03F36	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)

#5E5634

Deuteranopia (green-blind)

#7A6E33

Tritanopia (blue-blind)

#C1243E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b03f36;
/* rgb */ color: rgb(176, 63, 54);
/* oklch */ color: oklch(52.5% 0.149 27.9);

Tailwind

colors: {
  custom: {
    50: '#cf796d',
    500: '#b03f36',
    950: '#000000',
  },
}

SCSS

$custom: #b03f36;
$custom-light: #cf796d;
$custom-dark: #000000;

JSON

{
  "hex": "#b03f36",
  "rgb": {
    "r": 176,
    "g": 63,
    "b": 54
  },
  "hsl": {
    "h": 4.426,
    "s": 53.043,
    "l": 45.098
  },
  "oklch": {
    "l": 0.5247,
    "c": 0.14926,
    "h": 27.9
  },
  "luminance": 0.13051
}

Semantic roles & 50–950 ramp

primary

#B03F36

secondary

#7EBFC4

accent

#D2DC4B

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B03F36

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

Preview Lab → · Contrast checker → · Palette generator →