#B03A27#B03A27

#B03A27 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.7% C 0.157 H 31.8°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#B03A27
RGB	rgb(176, 58, 39)
HSL	hsl(8, 64%, 42%)
HSV	hsv(8, 78%, 69%)
CMYK	cmyk(0%, 67%, 77.8%, 31%)
CIE-LAB	lab(41.85, 46.96, 37.57)
CIE-LCH	lch(41.85, 60.14, 38.66°)
OKLab	oklab(51.67% 0.1335 0.0826)
OKLCH	oklch(51.67% 0.157 31.8)
XYZ	xyz(19.7860, 12.4056, 3.2717)
Luminance	0.1240 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03A27 #279DB0

analogous

#B02759 #B03A27 #B07F27

triadic

#B03A27 #27B03A #3A27B0

tetradic

#B03A27 #59B027 #279DB0 #7F27B0

square

#B03A27 #59B027 #279DB0 #7F27B0

split-complementary

#B03A27 #27B07F #2759B0

monochromatic

#4C1911 #7E291C #B03A27 #D55440 #E08172

Accessibility & contrast

On white

6.03

#B03A27 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#B03A27 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03A27

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03A27	#FFFFFF	#000000	##FFFFFF
##B03A27	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5224

Deuteranopia (green-blind)

#796C22

Tritanopia (blue-blind)

#C21736

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b03a27;
/* rgb */ color: rgb(176, 58, 39);
/* oklch */ color: oklch(51.7% 0.157 31.8);

Tailwind

colors: {
  custom: {
    50: '#d07762',
    500: '#b03a27',
    950: '#000000',
  },
}

SCSS

$custom: #b03a27;
$custom-light: #d07762;
$custom-dark: #000000;

JSON

{
  "hex": "#b03a27",
  "rgb": {
    "r": 176,
    "g": 58,
    "b": 39
  },
  "hsl": {
    "h": 8.321,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.51666,
    "c": 0.15704,
    "h": 31.8
  },
  "luminance": 0.12403
}

Semantic roles & 50–950 ramp

primary

#B03A27

secondary

#6CBAC7

accent

#D0E741

background

#FDF7F5

surface

#FBEDEA

border

#D4C8C6

text

#150905

muted

#837B79

Preview Lab

Preview with #B03A27

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

Preview Lab → · Contrast checker → · Palette generator →