#03050B#03050B

#03050B is a very dark, near-neutral blue. Relative luminance 0.002; OKLCH L 11.5% C 0.017 H 263.8°. Best body text is #FFFFFF at 20.38:1 contrast (WCAG AA passes).

Color values

HEX	#03050B
RGB	rgb(3, 5, 11)
HSL	hsl(225, 57%, 3%)
HSV	hsv(225, 73%, 4%)
CMYK	cmyk(72.7%, 54.5%, 0%, 95.7%)
CIE-LAB	lab(1.37, 0.31, -2.46)
CIE-LCH	lch(1.37, 2.48, 277.23°)
OKLab	oklab(11.53% -0.0019 -0.0173)
OKLCH	oklch(11.53% 0.017 263.8)
XYZ	xyz(0.1522, 0.1521, 0.3379)
Luminance	0.0015 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03050B #0B0903

analogous

#03090B #03050B #05030B

triadic

#03050B #0B0305 #050B03

tetradic

#03050B #0B0309 #0B0903 #030B05

square

#03050B #0B0309 #0B0903 #030B05

split-complementary

#03050B #0B0503 #090B03

monochromatic

#070B18 #070B18 #070B18 #101B3B #1D316B

Accessibility & contrast

On white

20.38

#03050B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#03050B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03050B

20.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03050B	#FFFFFF	#000000	##FFFFFF
##03050B	1.00	20.38	1.03	20.38
#FFFFFF	20.38	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03050B

Deuteranopia (green-blind)

#03050B

Tritanopia (blue-blind)

#010607

Achromatopsia (no color)

#050505

Design tokens & code

CSS

--color: #03050b;
/* rgb */ color: rgb(3, 5, 11);
/* oklch */ color: oklch(11.5% 0.017 263.8);

Tailwind

colors: {
  custom: {
    50: '#48494c',
    500: '#03050b',
    950: '#000000',
  },
}

SCSS

$custom: #03050b;
$custom-light: #48494c;
$custom-dark: #000000;

JSON

{
  "hex": "#03050b",
  "rgb": {
    "r": 3,
    "g": 5,
    "b": 11
  },
  "hsl": {
    "h": 225,
    "s": 57.143,
    "l": 2.745
  },
  "oklch": {
    "l": 0.1153,
    "c": 0.01738,
    "h": 263.8
  },
  "luminance": 0.00152
}

Semantic roles & 50–950 ramp

primary

#03050B

secondary

#4A3F20

accent

#BA47E0

background

#F4F4F4

surface

#E6E6E7

border

#C2C2C3

text

#000001

muted

#777777

Preview Lab

Preview with #03050B

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

Preview Lab → · Contrast checker → · Palette generator →