#0F183D#0F183D

#0F183D is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.6% C 0.072 H 269.5°. Best body text is #FFFFFF at 17.24:1 contrast (WCAG AA passes).

Color values

HEX	#0F183D
RGB	rgb(15, 24, 61)
HSL	hsl(228, 61%, 15%)
HSV	hsv(228, 75%, 24%)
CMYK	cmyk(75.4%, 60.7%, 0%, 76.1%)
CIE-LAB	lab(9.73, 10.64, -25.05)
CIE-LCH	lch(9.73, 27.22, 293.01°)
OKLab	oklab(22.58% -0.0006 -0.0719)
OKLCH	oklch(22.58% 0.072 269.5)
XYZ	xyz(1.3657, 1.0916, 4.5527)
Luminance	0.0109 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F183D #3D340F

analogous

#0F2F3D #0F183D #1D0F3D

triadic

#0F183D #3D0F18 #183D0F

tetradic

#0F183D #3D0F2F #3D340F #0F3D1D

square

#0F183D #3D0F2F #3D340F #0F3D1D

split-complementary

#0F183D #3D1D0F #2F3D0F

monochromatic

#060A19 #060A19 #0F183D #1B2B6E #273F9F

Accessibility & contrast

On white

17.24

#0F183D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#0F183D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F183D

17.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F183D	#FFFFFF	#000000	##FFFFFF
##0F183D	1.00	17.24	1.22	17.24
#FFFFFF	17.24	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#031D3E

Deuteranopia (green-blind)

#00193C

Tritanopia (blue-blind)

#002127

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0f183d;
/* rgb */ color: rgb(15, 24, 61);
/* oklch */ color: oklch(22.6% 0.072 269.5);

Tailwind

colors: {
  custom: {
    50: '#545473',
    500: '#0f183d',
    950: '#000000',
  },
}

SCSS

$custom: #0f183d;
$custom-light: #545473;
$custom-dark: #000000;

JSON

{
  "hex": "#0f183d",
  "rgb": {
    "r": 15,
    "g": 24,
    "b": 61
  },
  "hsl": {
    "h": 228.261,
    "s": 60.526,
    "l": 14.902
  },
  "oklch": {
    "l": 0.22581,
    "c": 0.07194,
    "h": 269.5
  },
  "luminance": 0.01092
}

Semantic roles & 50–950 ramp

primary

#0F183D

secondary

#776A30

accent

#C444E4

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0F183D

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

Preview Lab → · Contrast checker → · Palette generator →