#03091F#03091F

#03091F is a very dark, muted blue. Relative luminance 0.003; OKLCH L 14.9% C 0.049 H 265.1°. Best body text is #FFFFFF at 19.76:1 contrast (WCAG AA passes).

Color values

HEX	#03091F
RGB	rgb(3, 9, 31)
HSL	hsl(227, 82%, 7%)
HSV	hsv(227, 90%, 12%)
CMYK	cmyk(90.3%, 71%, 0%, 87.8%)
CIE-LAB	lab(2.83, 3.46, -13.66)
CIE-LCH	lch(2.83, 14.09, 284.20°)
OKLab	oklab(14.86% -0.0041 -0.0485)
OKLCH	oklch(14.86% 0.049 265.1)
XYZ	xyz(0.3825, 0.3136, 1.3364)
Luminance	0.0031 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03091F #1F1903

analogous

#03171F #03091F #0B031F

triadic

#03091F #1F0309 #091F03

tetradic

#03091F #1F0317 #1F1903 #031F0B

square

#03091F #1F0317 #1F1903 #031F0B

split-complementary

#03091F #1F0B03 #171F03

monochromatic

#03081C #03081C #03091F #081957 #0E298F

Accessibility & contrast

On white

19.76

#03091F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#03091F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03091F

19.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03091F	#FFFFFF	#000000	##FFFFFF
##03091F	1.00	19.76	1.06	19.76
#FFFFFF	19.76	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#010C20

Deuteranopia (green-blind)

#00091F

Tritanopia (blue-blind)

#000E12

Achromatopsia (no color)

#0A0A0A

Design tokens & code

CSS

--color: #03091f;
/* rgb */ color: rgb(3, 9, 31);
/* oklch */ color: oklch(14.9% 0.049 265.1);

Tailwind

colors: {
  custom: {
    50: '#474b5a',
    500: '#03091f',
    950: '#000000',
  },
}

SCSS

$custom: #03091f;
$custom-light: #474b5a;
$custom-dark: #000000;

JSON

{
  "hex": "#03091f",
  "rgb": {
    "r": 3,
    "g": 9,
    "b": 31
  },
  "hsl": {
    "h": 227.143,
    "s": 82.353,
    "l": 6.667
  },
  "oklch": {
    "l": 0.14864,
    "c": 0.04869,
    "h": 265.1
  },
  "luminance": 0.00314
}

Semantic roles & 50–950 ramp

primary

#03091F

secondary

#63541B

accent

#CE2FF9

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000103

muted

#777778

Preview Lab

Preview with #03091F

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

Preview Lab → · Contrast checker → · Palette generator →