#B03E3E#B03E3E

#B03E3E is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.5% C 0.149 H 23.8°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#B03E3E
RGB	rgb(176, 62, 62)
HSL	hsl(0, 48%, 47%)
HSV	hsv(0, 65%, 69%)
CMYK	cmyk(0%, 64.8%, 64.8%, 31%)
CIE-LAB	lab(42.80, 46.39, 25.31)
CIE-LCH	lch(42.80, 52.84, 28.62°)
OKLab	oklab(52.48% 0.1364 0.0601)
OKLCH	oklch(52.48% 0.149 23.8)
XYZ	xyz(20.4987, 13.0260, 5.9913)
Luminance	0.1302 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03E3E #3EB0B0

analogous

#B03E77 #B03E3E #B0773E

triadic

#B03E3E #3EB03E #3E3EB0

tetradic

#B03E3E #77B03E #3EB0B0 #773EB0

square

#B03E3E #77B03E #3EB0B0 #773EB0

split-complementary

#B03E3E #3EB077 #3E77B0

monochromatic

#551E1E #832E2E #B03E3E #C86363 #D89090

Accessibility & contrast

On white

5.83

#B03E3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#B03E3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03E3E

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03E3E	#FFFFFF	#000000	##FFFFFF
##B03E3E	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C563D

Deuteranopia (green-blind)

#796E3B

Tritanopia (blue-blind)

#C1243F

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b03e3e;
/* rgb */ color: rgb(176, 62, 62);
/* oklch */ color: oklch(52.5% 0.149 23.8);

Tailwind

colors: {
  custom: {
    50: '#ce7973',
    500: '#b03e3e',
    950: '#000000',
  },
}

SCSS

$custom: #b03e3e;
$custom-light: #ce7973;
$custom-dark: #000000;

JSON

{
  "hex": "#b03e3e",
  "rgb": {
    "r": 176,
    "g": 62,
    "b": 62
  },
  "hsl": {
    "h": 0,
    "s": 47.899,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52477,
    "c": 0.14909,
    "h": 23.8
  },
  "luminance": 0.13023
}

Semantic roles & 50–950 ramp

primary

#B03E3E

secondary

#87C3C3

accent

#D7D750

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B03E3E

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

Preview Lab → · Contrast checker → · Palette generator →