#B03027#B03027

#B03027 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.6% C 0.166 H 28.5°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#B03027
RGB	rgb(176, 48, 39)
HSL	hsl(4, 64%, 42%)
HSV	hsv(4, 78%, 69%)
CMYK	cmyk(0%, 72.7%, 77.8%, 31%)
CIE-LAB	lab(40.40, 50.93, 36.04)
CIE-LCH	lch(40.40, 62.40, 35.28°)
OKLab	oklab(50.58% 0.146 0.0793)
OKLCH	oklch(50.58% 0.166 28.5)
XYZ	xyz(19.3299, 11.4935, 3.1197)
Luminance	0.1149 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03027 #27A7B0

analogous

#B02762 #B03027 #B07527

triadic

#B03027 #27B030 #3027B0

tetradic

#B03027 #62B027 #27A7B0 #7527B0

square

#B03027 #62B027 #27A7B0 #7527B0

split-complementary

#B03027 #27B075 #2762B0

monochromatic

#4C1511 #7E221C #B03027 #D54940 #E07972

Accessibility & contrast

On white

6.37

#B03027 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#B03027 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03027

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03027	#FFFFFF	#000000	##FFFFFF
##B03027	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564D25

Deuteranopia (green-blind)

#766922

Tritanopia (blue-blind)

#C2002F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b03027;
/* rgb */ color: rgb(176, 48, 39);
/* oklch */ color: oklch(50.6% 0.166 28.5);

Tailwind

colors: {
  custom: {
    50: '#d07162',
    500: '#b03027',
    950: '#000000',
  },
}

SCSS

$custom: #b03027;
$custom-light: #d07162;
$custom-dark: #000000;

JSON

{
  "hex": "#b03027",
  "rgb": {
    "r": 176,
    "g": 48,
    "b": 39
  },
  "hsl": {
    "h": 3.942,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.50577,
    "c": 0.16613,
    "h": 28.5
  },
  "luminance": 0.1149
}

Semantic roles & 50–950 ramp

primary

#B03027

secondary

#6CC1C7

accent

#DCE741

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160805

muted

#847B79

Preview Lab

Preview with #B03027

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

Preview Lab → · Contrast checker → · Palette generator →