#B03A3F#B03A3F

#B03A3F is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.0% C 0.153 H 21.9°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#B03A3F
RGB	rgb(176, 58, 63)
HSL	hsl(357, 50%, 46%)
HSV	hsv(357, 67%, 69%)
CMYK	cmyk(0%, 67%, 64.2%, 31%)
CIE-LAB	lab(42.18, 48.17, 23.92)
CIE-LCH	lch(42.18, 53.79, 26.41°)
OKLab	oklab(52.02% 0.1423 0.0571)
OKLCH	oklch(52.02% 0.153 21.9)
XYZ	xyz(20.3168, 12.6179, 6.0673)
Luminance	0.1262 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03A3F #3AB0AB

analogous

#B03A7A #B03A3F #B0703A

triadic

#B03A3F #3FB03A #3A3FB0

tetradic

#B03A3F #7AB03A #3AB0AB #703AB0

square

#B03A3F #7AB03A #3AB0AB #703AB0

split-complementary

#B03A3F #3AB070 #3A7AB0

monochromatic

#541C1E #822B2F #B03A3F #CA5D62 #D98B8F

Accessibility & contrast

On white

5.96

#B03A3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#B03A3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03A3F

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03A3F	#FFFFFF	#000000	##FFFFFF
##B03A3F	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59543E

Deuteranopia (green-blind)

#776D3C

Tritanopia (blue-blind)

#C11E3D

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b03a3f;
/* rgb */ color: rgb(176, 58, 63);
/* oklch */ color: oklch(52.0% 0.153 21.9);

Tailwind

colors: {
  custom: {
    50: '#ce7774',
    500: '#b03a3f',
    950: '#000000',
  },
}

SCSS

$custom: #b03a3f;
$custom-light: #ce7774;
$custom-dark: #000000;

JSON

{
  "hex": "#b03a3f",
  "rgb": {
    "r": 176,
    "g": 58,
    "b": 63
  },
  "hsl": {
    "h": 357.458,
    "s": 50.427,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52018,
    "c": 0.1533,
    "h": 21.9
  },
  "luminance": 0.12615
}

Semantic roles & 50–950 ramp

primary

#B03A3F

secondary

#82C3C1

accent

#DAD44E

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B03A3F

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

Preview Lab → · Contrast checker → · Palette generator →