#150403#150403

#150403 is a very dark, muted red. Relative luminance 0.003; OKLCH L 14.0% C 0.035 H 28.0°. Best body text is #FFFFFF at 19.99:1 contrast (WCAG AA passes).

Color values

HEX	#150403
RGB	rgb(21, 4, 3)
HSL	hsl(3, 75%, 5%)
HSV	hsv(3, 86%, 8%)
CMYK	cmyk(0%, 81%, 85.7%, 91.8%)
CIE-LAB	lab(2.28, 5.27, 2.29)
CIE-LCH	lch(2.28, 5.75, 23.44°)
OKLab	oklab(14.02% 0.0306 0.0163)
OKLCH	oklch(14.02% 0.035 28)
XYZ	xyz(0.3691, 0.2529, 0.1155)
Luminance	0.0025 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#150403 #031415

analogous

#15030B #150403 #150D03

triadic

#150403 #031504 #040315

tetradic

#150403 #0B1503 #031415 #0D0315

square

#150403 #0B1503 #031415 #0D0315

split-complementary

#150403 #03150D #030B15

monochromatic

#1B0504 #1B0504 #1B0504 #4B0E0B #801812

Accessibility & contrast

On white

19.99

#150403 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.05

#150403 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #150403

19.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##150403	#FFFFFF	#000000	##FFFFFF
##150403	1.00	19.99	1.05	19.99
#FFFFFF	19.99	1.00	21.00	1.00
#000000	1.05	21.00	1.00	21.00
##FFFFFF	19.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#070603

Deuteranopia (green-blind)

#0C0A03

Tritanopia (blue-blind)

#180204

Achromatopsia (no color)

#080808

Design tokens & code

CSS

--color: #150403;
/* rgb */ color: rgb(21, 4, 3);
/* oklch */ color: oklch(14.0% 0.035 28.0);

Tailwind

colors: {
  custom: {
    50: '#514848',
    500: '#150403',
    950: '#000000',
  },
}

SCSS

$custom: #150403;
$custom-light: #514848;
$custom-dark: #000000;

JSON

{
  "hex": "#150403",
  "rgb": {
    "r": 21,
    "g": 4,
    "b": 3
  },
  "hsl": {
    "h": 3.333,
    "s": 75,
    "l": 4.706
  },
  "oklch": {
    "l": 0.14024,
    "c": 0.03472,
    "h": 28
  },
  "luminance": 0.00253
}

Semantic roles & 50–950 ramp

primary

#150403

secondary

#1C5558

accent

#E7F236

background

#F4F4F4

surface

#E7E6E6

border

#C3C2C2

text

#020000

muted

#787777

Preview Lab

Preview with #150403

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

Preview Lab → · Contrast checker → · Palette generator →