#0F185A#0F185A

#0F185A is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.5% C 0.117 H 269.5°. Best body text is #FFFFFF at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#0F185A
RGB	rgb(15, 24, 90)
HSL	hsl(233, 71%, 21%)
HSV	hsv(233, 83%, 35%)
CMYK	cmyk(83.3%, 73.3%, 0%, 64.7%)
CIE-LAB	lab(12.56, 22.93, -40.49)
CIE-LCH	lch(12.56, 46.53, 299.53°)
OKLab	oklab(25.55% -0.0011 -0.1172)
OKLCH	oklch(25.55% 0.117 269.5)
XYZ	xyz(2.3685, 1.4927, 9.8342)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F185A #5A510F

analogous

#0F3D5A #0F185A #2B0F5A

triadic

#0F185A #5A0F18 #185A0F

tetradic

#0F185A #5A0F3D #5A510F #0F5A2B

square

#0F185A #5A0F3D #5A510F #0F5A2B

split-complementary

#0F185A #5A2B0F #3D5A0F

monochromatic

#04071A #060A26 #0F185A #18268E #2034C3

Accessibility & contrast

On white

16.17

#0F185A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#0F185A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F185A

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F185A	#FFFFFF	#000000	##FFFFFF
##0F185A	1.00	16.17	1.30	16.17
#FFFFFF	16.17	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245C

Deuteranopia (green-blind)

#001D59

Tritanopia (blue-blind)

#002A36

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #0f185a;
/* rgb */ color: rgb(15, 24, 90);
/* oklch */ color: oklch(25.5% 0.117 269.5);

Tailwind

colors: {
  custom: {
    50: '#5c5589',
    500: '#0f185a',
    950: '#000000',
  },
}

SCSS

$custom: #0f185a;
$custom-light: #5c5589;
$custom-dark: #000000;

JSON

{
  "hex": "#0f185a",
  "rgb": {
    "r": 15,
    "g": 24,
    "b": 90
  },
  "hsl": {
    "h": 232.8,
    "s": 71.429,
    "l": 20.588
  },
  "oklch": {
    "l": 0.25549,
    "c": 0.11723,
    "h": 269.5
  },
  "luminance": 0.01493
}

Semantic roles & 50–950 ramp

primary

#0F185A

secondary

#948831

accent

#D93AEE

background

#F5F4F8

surface

#E9E7F0

border

#C5C3CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #0F185A

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

Preview Lab → · Contrast checker → · Palette generator →