#B03A3A#B03A3A

#B03A3A is a mid, vivid red. Relative luminance 0.126; OKLCH L 51.9% C 0.154 H 24.2°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#B03A3A
RGB	rgb(176, 58, 58)
HSL	hsl(0, 50%, 46%)
HSV	hsv(0, 67%, 69%)
CMYK	cmyk(0%, 67%, 67%, 31%)
CIE-LAB	lab(42.10, 47.87, 26.85)
CIE-LCH	lch(42.10, 54.89, 29.29°)
OKLab	oklab(51.93% 0.1403 0.0631)
OKLCH	oklch(51.93% 0.154 24.2)
XYZ	xyz(20.1834, 12.5646, 5.3646)
Luminance	0.1256 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03A3A #3AB0B0

analogous

#B03A75 #B03A3A #B0753A

triadic

#B03A3A #3AB03A #3A3AB0

tetradic

#B03A3A #75B03A #3AB0B0 #753AB0

square

#B03A3A #75B03A #3AB0B0 #753AB0

split-complementary

#B03A3A #3AB075 #3A75B0

monochromatic

#541C1C #822B2B #B03A3A #CA5D5D #D98B8B

Accessibility & contrast

On white

5.98

#B03A3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#B03A3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03A3A

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03A3A	#FFFFFF	#000000	##FFFFFF
##B03A3A	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5339

Deuteranopia (green-blind)

#786D37

Tritanopia (blue-blind)

#C11C3B

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b03a3a;
/* rgb */ color: rgb(176, 58, 58);
/* oklch */ color: oklch(51.9% 0.154 24.2);

Tailwind

colors: {
  custom: {
    50: '#cf7770',
    500: '#b03a3a',
    950: '#000000',
  },
}

SCSS

$custom: #b03a3a;
$custom-light: #cf7770;
$custom-dark: #000000;

JSON

{
  "hex": "#b03a3a",
  "rgb": {
    "r": 176,
    "g": 58,
    "b": 58
  },
  "hsl": {
    "h": 0,
    "s": 50.427,
    "l": 45.882
  },
  "oklch": {
    "l": 0.5193,
    "c": 0.15384,
    "h": 24.2
  },
  "luminance": 0.12562
}

Semantic roles & 50–950 ramp

primary

#B03A3A

secondary

#82C3C3

accent

#DADA4E

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B03A3A

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

Preview Lab → · Contrast checker → · Palette generator →