#B03F38#B03F38

#B03F38 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.5% C 0.149 H 27.0°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#B03F38
RGB	rgb(176, 63, 56)
HSL	hsl(4, 52%, 45%)
HSV	hsv(4, 68%, 69%)
CMYK	cmyk(0%, 64.2%, 68.2%, 31%)
CIE-LAB	lab(42.87, 45.59, 28.99)
CIE-LCH	lch(42.87, 54.03, 32.45°)
OKLab	oklab(52.5% 0.1327 0.0675)
OKLCH	oklch(52.5% 0.149 27)
XYZ	xyz(20.3979, 13.0735, 5.1899)
Luminance	0.1307 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03F38 #38A9B0

analogous

#B0386D #B03F38 #B07B38

triadic

#B03F38 #38B03F #3F38B0

tetradic

#B03F38 #6DB038 #38A9B0 #7B38B0

square

#B03F38 #6DB038 #38A9B0 #7B38B0

split-complementary

#B03F38 #38B07B #386DB0

monochromatic

#531E1A #822E29 #B03F38 #CB615B #D98E89

Accessibility & contrast

On white

5.81

#B03F38 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#B03F38 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03F38

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03F38	#FFFFFF	#000000	##FFFFFF
##B03F38	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)

#5D5636

Deuteranopia (green-blind)

#7A6E35

Tritanopia (blue-blind)

#C1243E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b03f38;
/* rgb */ color: rgb(176, 63, 56);
/* oklch */ color: oklch(52.5% 0.149 27.0);

Tailwind

colors: {
  custom: {
    50: '#ce7a6f',
    500: '#b03f38',
    950: '#000000',
  },
}

SCSS

$custom: #b03f38;
$custom-light: #ce7a6f;
$custom-dark: #000000;

JSON

{
  "hex": "#b03f38",
  "rgb": {
    "r": 176,
    "g": 63,
    "b": 56
  },
  "hsl": {
    "h": 3.5,
    "s": 51.724,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52501,
    "c": 0.1489,
    "h": 27
  },
  "luminance": 0.13071
}

Semantic roles & 50–950 ramp

primary

#B03F38

secondary

#80C0C4

accent

#D3DB4D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B03F38

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

Preview Lab → · Contrast checker → · Palette generator →