#0D173B#0D173B

#0D173B is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.0% C 0.071 H 268.3°. Best body text is #FFFFFF at 17.46:1 contrast (WCAG AA passes).

Color values

HEX	#0D173B
RGB	rgb(13, 23, 59)
HSL	hsl(227, 64%, 14%)
HSV	hsv(227, 78%, 23%)
CMYK	cmyk(78%, 61%, 0%, 76.9%)
CIE-LAB	lab(9.11, 10.16, -24.64)
CIE-LCH	lch(9.11, 26.65, 292.41°)
OKLab	oklab(22.02% -0.002 -0.0708)
OKLCH	oklch(22.02% 0.071 268.3)
XYZ	xyz(1.2615, 1.0140, 4.2661)
Luminance	0.0101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0D173B #3B310D

analogous

#0D2E3B #0D173B #1A0D3B

triadic

#0D173B #3B0D17 #173B0D

tetradic

#0D173B #3B0D2E #3B310D #0D3B1A

square

#0D173B #3B0D2E #3B310D #0D3B1A

split-complementary

#0D173B #3B1A0D #2E3B0D

monochromatic

#060A19 #060A19 #0D173B #182B6D #233E9F

Accessibility & contrast

On white

17.46

#0D173B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#0D173B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0D173B

17.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0D173B	#FFFFFF	#000000	##FFFFFF
##0D173B	1.00	17.46	1.20	17.46
#FFFFFF	17.46	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021C3C

Deuteranopia (green-blind)

#00183A

Tritanopia (blue-blind)

#002026

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0d173b;
/* rgb */ color: rgb(13, 23, 59);
/* oklch */ color: oklch(22.0% 0.071 268.3);

Tailwind

colors: {
  custom: {
    50: '#525371',
    500: '#0d173b',
    950: '#000000',
  },
}

SCSS

$custom: #0d173b;
$custom-light: #525371;
$custom-dark: #000000;

JSON

{
  "hex": "#0d173b",
  "rgb": {
    "r": 13,
    "g": 23,
    "b": 59
  },
  "hsl": {
    "h": 226.957,
    "s": 63.889,
    "l": 14.118
  },
  "oklch": {
    "l": 0.22021,
    "c": 0.07083,
    "h": 268.3
  },
  "luminance": 0.01014
}

Semantic roles & 50–950 ramp

primary

#0D173B

secondary

#77672D

accent

#C341E7

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#030207

muted

#78787A

Preview Lab

Preview with #0D173B

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

Preview Lab → · Contrast checker → · Palette generator →