#0F174C#0F174C

#0F174C is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.8% C 0.098 H 270.4°. Best body text is #FFFFFF at 16.84:1 contrast (WCAG AA passes).

Color values

HEX	#0F174C
RGB	rgb(15, 23, 76)
HSL	hsl(232, 67%, 18%)
HSV	hsv(232, 80%, 30%)
CMYK	cmyk(80.3%, 69.7%, 0%, 70.2%)
CIE-LAB	lab(10.82, 17.85, -33.80)
CIE-LCH	lch(10.82, 38.23, 297.85°)
OKLab	oklab(23.83% 0.0006 -0.0977)
OKLCH	oklch(23.83% 0.098 270.4)
XYZ	xyz(1.8075, 1.2360, 6.9794)
Luminance	0.0124 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F174C #4C440F

analogous

#0F354C #0F174C #250F4C

triadic

#0F174C #4C0F17 #174C0F

tetradic

#0F174C #4C0F35 #4C440F #0F4C25

square

#0F174C #4C0F35 #4C440F #0F4C25

split-complementary

#0F174C #4C250F #354C0F

monochromatic

#05081A #05081A #0F174C #19267F #2336B2

Accessibility & contrast

On white

16.84

#0F174C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#0F174C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F174C

16.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F174C	#FFFFFF	#000000	##FFFFFF
##0F174C	1.00	16.84	1.25	16.84
#FFFFFF	16.84	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00204E

Deuteranopia (green-blind)

#001A4B

Tritanopia (blue-blind)

#00252F

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #0f174c;
/* rgb */ color: rgb(15, 23, 76);
/* oklch */ color: oklch(23.8% 0.098 270.4);

Tailwind

colors: {
  custom: {
    50: '#58537f',
    500: '#0f174c',
    950: '#000000',
  },
}

SCSS

$custom: #0f174c;
$custom-light: #58537f;
$custom-dark: #000000;

JSON

{
  "hex": "#0f174c",
  "rgb": {
    "r": 15,
    "g": 23,
    "b": 76
  },
  "hsl": {
    "h": 232.131,
    "s": 67.033,
    "l": 17.843
  },
  "oklch": {
    "l": 0.23828,
    "c": 0.09766,
    "h": 270.4
  },
  "luminance": 0.01236
}

Semantic roles & 50–950 ramp

primary

#0F174C

secondary

#867B31

accent

#D33EEA

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #0F174C

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

Preview Lab → · Contrast checker → · Palette generator →