#0F184E#0F184E

#0F184E is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.2% C 0.099 H 269.9°. Best body text is #FFFFFF at 16.65:1 contrast (WCAG AA passes).

Color values

HEX	#0F184E
RGB	rgb(15, 24, 78)
HSL	hsl(231, 68%, 18%)
HSV	hsv(231, 81%, 31%)
CMYK	cmyk(80.8%, 69.2%, 0%, 69.4%)
CIE-LAB	lab(11.31, 17.95, -34.38)
CIE-LCH	lch(11.31, 38.78, 297.57°)
OKLab	oklab(24.25% -0.0002 -0.0993)
OKLCH	oklch(24.25% 0.099 269.9)
XYZ	xyz(1.8983, 1.3047, 7.3580)
Luminance	0.0131 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F184E #4E450F

analogous

#0F374E #0F184E #250F4E

triadic

#0F184E #4E0F18 #184E0F

tetradic

#0F184E #4E0F37 #4E450F #0F4E25

square

#0F184E #4E0F37 #4E450F #0F4E25

split-complementary

#0F184E #4E250F #374E0F

monochromatic

#05081A #05081B #0F184E #192881 #2338B5

Accessibility & contrast

On white

16.65

#0F184E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#0F184E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F184E

16.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F184E	#FFFFFF	#000000	##FFFFFF
##0F184E	1.00	16.65	1.26	16.65
#FFFFFF	16.65	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002150

Deuteranopia (green-blind)

#001B4D

Tritanopia (blue-blind)

#002630

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #0f184e;
/* rgb */ color: rgb(15, 24, 78);
/* oklch */ color: oklch(24.2% 0.099 269.9);

Tailwind

colors: {
  custom: {
    50: '#595480',
    500: '#0f184e',
    950: '#000000',
  },
}

SCSS

$custom: #0f184e;
$custom-light: #595480;
$custom-dark: #000000;

JSON

{
  "hex": "#0f184e",
  "rgb": {
    "r": 15,
    "g": 24,
    "b": 78
  },
  "hsl": {
    "h": 231.429,
    "s": 67.742,
    "l": 18.235
  },
  "oklch": {
    "l": 0.24249,
    "c": 0.09935,
    "h": 269.9
  },
  "luminance": 0.01305
}

Semantic roles & 50–950 ramp

primary

#0F184E

secondary

#887C31

accent

#D23DEB

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #0F184E

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

Preview Lab → · Contrast checker → · Palette generator →