#0F184B#0F184B

#0F184B is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.9% C 0.095 H 269.9°. Best body text is #FFFFFF at 16.77:1 contrast (WCAG AA passes).

Color values

HEX	#0F184B
RGB	rgb(15, 24, 75)
HSL	hsl(231, 67%, 18%)
HSV	hsv(231, 80%, 29%)
CMYK	cmyk(80%, 68%, 0%, 70.6%)
CIE-LAB	lab(11.01, 16.68, -32.80)
CIE-LCH	lch(11.01, 36.79, 296.96°)
OKLab	oklab(23.94% -0.0001 -0.0947)
OKLCH	oklch(23.94% 0.095 269.9)
XYZ	xyz(1.7932, 1.2626, 6.8045)
Luminance	0.0126 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F184B #4B420F

analogous

#0F364B #0F184B #240F4B

triadic

#0F184B #4B0F18 #184B0F

tetradic

#0F184B #4B0F36 #4B420F #0F4B24

square

#0F184B #4B0F36 #4B420F #0F4B24

split-complementary

#0F184B #4B240F #364B0F

monochromatic

#05081A #05081A #0F184B #19287E #2339B1

Accessibility & contrast

On white

16.77

#0F184B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#0F184B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F184B

16.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F184B	#FFFFFF	#000000	##FFFFFF
##0F184B	1.00	16.77	1.25	16.77
#FFFFFF	16.77	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00204D

Deuteranopia (green-blind)

#001B4A

Tritanopia (blue-blind)

#00252E

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #0f184b;
/* rgb */ color: rgb(15, 24, 75);
/* oklch */ color: oklch(23.9% 0.095 269.9);

Tailwind

colors: {
  custom: {
    50: '#58547e',
    500: '#0f184b',
    950: '#000000',
  },
}

SCSS

$custom: #0f184b;
$custom-light: #58547e;
$custom-dark: #000000;

JSON

{
  "hex": "#0f184b",
  "rgb": {
    "r": 15,
    "g": 24,
    "b": 75
  },
  "hsl": {
    "h": 231,
    "s": 66.667,
    "l": 17.647
  },
  "oklch": {
    "l": 0.23938,
    "c": 0.0947,
    "h": 269.9
  },
  "luminance": 0.01263
}

Semantic roles & 50–950 ramp

primary

#0F184B

secondary

#857930

accent

#D03EEA

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #0F184B

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

Preview Lab → · Contrast checker → · Palette generator →