#0F174F#0F174F

#0F174F is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.1% C 0.102 H 270.3°. Best body text is #FFFFFF at 16.72:1 contrast (WCAG AA passes).

Color values

HEX	#0F174F
RGB	rgb(15, 23, 79)
HSL	hsl(233, 68%, 18%)
HSV	hsv(233, 81%, 31%)
CMYK	cmyk(81%, 70.9%, 0%, 69%)
CIE-LAB	lab(11.13, 19.11, -35.37)
CIE-LCH	lch(11.13, 40.20, 298.39°)
OKLab	oklab(24.15% 0.0005 -0.1022)
OKLCH	oklch(24.15% 0.102 270.3)
XYZ	xyz(1.9142, 1.2787, 7.5415)
Luminance	0.0128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F174F #4F470F

analogous

#0F374F #0F174F #270F4F

triadic

#0F174F #4F0F17 #174F0F

tetradic

#0F174F #4F0F37 #4F470F #0F4F27

square

#0F174F #4F0F37 #4F470F #0F4F27

split-complementary

#0F174F #4F270F #374F0F

monochromatic

#05071A #05081C #0F174F #192682 #2335B6

Accessibility & contrast

On white

16.72

#0F174F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#0F174F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F174F

16.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F174F	#FFFFFF	#000000	##FFFFFF
##0F174F	1.00	16.72	1.26	16.72
#FFFFFF	16.72	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002151

Deuteranopia (green-blind)

#001B4E

Tritanopia (blue-blind)

#002630

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #0f174f;
/* rgb */ color: rgb(15, 23, 79);
/* oklch */ color: oklch(24.1% 0.102 270.3);

Tailwind

colors: {
  custom: {
    50: '#595381',
    500: '#0f174f',
    950: '#000000',
  },
}

SCSS

$custom: #0f174f;
$custom-light: #595381;
$custom-dark: #000000;

JSON

{
  "hex": "#0f174f",
  "rgb": {
    "r": 15,
    "g": 23,
    "b": 79
  },
  "hsl": {
    "h": 232.5,
    "s": 68.085,
    "l": 18.431
  },
  "oklch": {
    "l": 0.24146,
    "c": 0.10225,
    "h": 270.3
  },
  "luminance": 0.01279
}

Semantic roles & 50–950 ramp

primary

#0F174F

secondary

#897E31

accent

#D53DEB

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #0F174F

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

Preview Lab → · Contrast checker → · Palette generator →