#0D043B#0D043B

#0D043B is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.1% C 0.098 H 278.7°. Best body text is #FFFFFF at 19.13:1 contrast (WCAG AA passes).

Color values

HEX	#0D043B
RGB	rgb(13, 4, 59)
HSL	hsl(250, 87%, 12%)
HSV	hsv(250, 93%, 23%)
CMYK	cmyk(78%, 93.2%, 0%, 76.9%)
CIE-LAB	lab(4.41, 21.54, -32.27)
CIE-LCH	lch(4.41, 38.80, 303.72°)
OKLab	oklab(18.08% 0.0149 -0.0968)
OKLCH	oklch(18.08% 0.098 278.7)
XYZ	xyz(0.9986, 0.4881, 4.1784)
Luminance	0.0049 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0D043B #323B04

analogous

#04173B #0D043B #29043B

triadic

#0D043B #3B0D04 #043B0D

tetradic

#0D043B #3B0417 #323B04 #043B29

square

#0D043B #3B0417 #323B04 #043B29

split-complementary

#0D043B #3B2904 #173B04

monochromatic

#06021D #06021D #0D043B #1A0874 #260CAE

Accessibility & contrast

On white

19.13

#0D043B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#0D043B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0D043B

19.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0D043B	#FFFFFF	#000000	##FFFFFF
##0D043B	1.00	19.13	1.10	19.13
#FFFFFF	19.13	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00113D

Deuteranopia (green-blind)

#000D3A

Tritanopia (blue-blind)

#001520

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #0d043b;
/* rgb */ color: rgb(13, 4, 59);
/* oklch */ color: oklch(18.1% 0.098 278.7);

Tailwind

colors: {
  custom: {
    50: '#534772',
    500: '#0d043b',
    950: '#000000',
  },
}

SCSS

$custom: #0d043b;
$custom-light: #534772;
$custom-dark: #000000;

JSON

{
  "hex": "#0d043b",
  "rgb": {
    "r": 13,
    "g": 4,
    "b": 59
  },
  "hsl": {
    "h": 249.818,
    "s": 87.302,
    "l": 12.353
  },
  "oklch": {
    "l": 0.18082,
    "c": 0.09798,
    "h": 278.7
  },
  "luminance": 0.00488
}

Semantic roles & 50–950 ramp

primary

#0D043B

secondary

#6D7D1E

accent

#FD2ADB

background

#F5F4F6

surface

#E9E6EC

border

#C5C2C7

text

#030008

muted

#78777B

Preview Lab

Preview with #0D043B

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

Preview Lab → · Contrast checker → · Palette generator →