#0D1F4B#0D1F4B

#0D1F4B is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.4% C 0.085 H 264.4°. Best body text is #FFFFFF at 15.97:1 contrast (WCAG AA passes).

Color values

HEX	#0D1F4B
RGB	rgb(13, 31, 75)
HSL	hsl(223, 70%, 17%)
HSV	hsv(223, 83%, 29%)
CMYK	cmyk(82.7%, 58.7%, 0%, 70.6%)
CIE-LAB	lab(13.07, 11.02, -29.46)
CIE-LCH	lch(13.07, 31.45, 290.50°)
OKLab	oklab(25.45% -0.0084 -0.0848)
OKLCH	oklch(25.45% 0.085 264.4)
XYZ	xyz(1.9255, 1.5733, 6.8574)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0D1F4B #4B390D

analogous

#0D3E4B #0D1F4B #1A0D4B

triadic

#0D1F4B #4B0D1F #1F4B0D

tetradic

#0D1F4B #4B0D3E #4B390D #0D4B1A

square

#0D1F4B #4B0D3E #4B390D #0D4B1A

split-complementary

#0D1F4B #4B1A0D #3E4B0D

monochromatic

#050B1A #050B1A #0D1F4B #16357F #1F4AB3

Accessibility & contrast

On white

15.97

#0D1F4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#0D1F4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0D1F4B

15.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0D1F4B	#FFFFFF	#000000	##FFFFFF
##0D1F4B	1.00	15.97	1.31	15.97
#FFFFFF	15.97	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02254D

Deuteranopia (green-blind)

#001F4A

Tritanopia (blue-blind)

#002A31

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #0d1f4b;
/* rgb */ color: rgb(13, 31, 75);
/* oklch */ color: oklch(25.4% 0.085 264.4);

Tailwind

colors: {
  custom: {
    50: '#565a7e',
    500: '#0d1f4b',
    950: '#000000',
  },
}

SCSS

$custom: #0d1f4b;
$custom-light: #565a7e;
$custom-dark: #000000;

JSON

{
  "hex": "#0d1f4b",
  "rgb": {
    "r": 13,
    "g": 31,
    "b": 75
  },
  "hsl": {
    "h": 222.581,
    "s": 70.455,
    "l": 17.255
  },
  "oklch": {
    "l": 0.25449,
    "c": 0.08523,
    "h": 264.4
  },
  "luminance": 0.01574
}

Semantic roles & 50–950 ramp

primary

#0D1F4B

secondary

#866C2E

accent

#B93BED

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#03030A

muted

#78787C

Preview Lab

Preview with #0D1F4B

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

Preview Lab → · Contrast checker → · Palette generator →