#0F183C#0F183C

#0F183C is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.5% C 0.070 H 269.4°. Best body text is #FFFFFF at 17.27:1 contrast (WCAG AA passes).

Color values

HEX	#0F183C
RGB	rgb(15, 24, 60)
HSL	hsl(228, 60%, 15%)
HSV	hsv(228, 75%, 24%)
CMYK	cmyk(75%, 60%, 0%, 76.5%)
CIE-LAB	lab(9.65, 10.21, -24.47)
CIE-LCH	lch(9.65, 26.52, 292.64°)
OKLab	oklab(22.49% -0.0007 -0.0702)
OKLCH	oklch(22.49% 0.07 269.4)
XYZ	xyz(1.3390, 1.0809, 4.4122)
Luminance	0.0108 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F183C #3C330F

analogous

#0F2F3C #0F183C #1D0F3C

triadic

#0F183C #3C0F18 #183C0F

tetradic

#0F183C #3C0F2F #3C330F #0F3C1D

square

#0F183C #3C0F2F #3C330F #0F3C1D

split-complementary

#0F183C #3C1D0F #2F3C0F

monochromatic

#060A18 #060A18 #0F183C #1B2C6D #273F9E

Accessibility & contrast

On white

17.27

#0F183C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#0F183C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F183C

17.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F183C	#FFFFFF	#000000	##FFFFFF
##0F183C	1.00	17.27	1.22	17.27
#FFFFFF	17.27	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#041D3D

Deuteranopia (green-blind)

#00193B

Tritanopia (blue-blind)

#002027

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0f183c;
/* rgb */ color: rgb(15, 24, 60);
/* oklch */ color: oklch(22.5% 0.070 269.4);

Tailwind

colors: {
  custom: {
    50: '#545472',
    500: '#0f183c',
    950: '#000000',
  },
}

SCSS

$custom: #0f183c;
$custom-light: #545472;
$custom-dark: #000000;

JSON

{
  "hex": "#0f183c",
  "rgb": {
    "r": 15,
    "g": 24,
    "b": 60
  },
  "hsl": {
    "h": 228,
    "s": 60,
    "l": 14.706
  },
  "oklch": {
    "l": 0.22491,
    "c": 0.07024,
    "h": 269.4
  },
  "luminance": 0.01081
}

Semantic roles & 50–950 ramp

primary

#0F183C

secondary

#766830

accent

#C345E3

background

#F5F4F6

surface

#E8E7EC

border

#C4C3C7

text

#030208

muted

#78787B

Preview Lab

Preview with #0F183C

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

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