#B03E3F#B03E3F

#B03E3F is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.5% C 0.149 H 23.3°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#B03E3F
RGB	rgb(176, 62, 63)
HSL	hsl(359, 48%, 47%)
HSV	hsv(359, 65%, 69%)
CMYK	cmyk(0%, 64.8%, 64.2%, 31%)
CIE-LAB	lab(42.82, 46.45, 24.73)
CIE-LCH	lch(42.82, 52.62, 28.03°)
OKLab	oklab(52.5% 0.1368 0.0589)
OKLCH	oklch(52.5% 0.149 23.3)
XYZ	xyz(20.5263, 13.0370, 6.1372)
Luminance	0.1303 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03E3F #3EB0AF

analogous

#B03E78 #B03E3F #B0763E

triadic

#B03E3F #3FB03E #3E3FB0

tetradic

#B03E3F #78B03E #3EB0AF #763EB0

square

#B03E3F #78B03E #3EB0AF #763EB0

split-complementary

#B03E3F #3EB076 #3E78B0

monochromatic

#551E1F #832E2F #B03E3F #C86364 #D89091

Accessibility & contrast

On white

5.82

#B03E3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#B03E3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03E3F

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03E3F	#FFFFFF	#000000	##FFFFFF
##B03E3F	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)

#5C563E

Deuteranopia (green-blind)

#796E3C

Tritanopia (blue-blind)

#C1253F

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b03e3f;
/* rgb */ color: rgb(176, 62, 63);
/* oklch */ color: oklch(52.5% 0.149 23.3);

Tailwind

colors: {
  custom: {
    50: '#ce7974',
    500: '#b03e3f',
    950: '#000000',
  },
}

SCSS

$custom: #b03e3f;
$custom-light: #ce7974;
$custom-dark: #000000;

JSON

{
  "hex": "#b03e3f",
  "rgb": {
    "r": 176,
    "g": 62,
    "b": 63
  },
  "hsl": {
    "h": 359.474,
    "s": 47.899,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52495,
    "c": 0.14896,
    "h": 23.3
  },
  "luminance": 0.13034
}

Semantic roles & 50–950 ramp

primary

#B03E3F

secondary

#87C3C3

accent

#D7D650

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B03E3F

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

Preview Lab → · Contrast checker → · Palette generator →