#0F174E#0F174E

#0F174E is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.0% C 0.101 H 270.3°. Best body text is #FFFFFF at 16.76:1 contrast (WCAG AA passes).

Color values

HEX	#0F174E
RGB	rgb(15, 23, 78)
HSL	hsl(232, 68%, 18%)
HSV	hsv(232, 81%, 31%)
CMYK	cmyk(80.8%, 70.5%, 0%, 69.4%)
CIE-LAB	lab(11.02, 18.70, -34.85)
CIE-LCH	lch(11.02, 39.55, 298.22°)
OKLab	oklab(24.04% 0.0005 -0.1007)
OKLCH	oklch(24.04% 0.101 270.3)
XYZ	xyz(1.8781, 1.2642, 7.3513)
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

#0F174E #4E460F

analogous

#0F364E #0F174E #260F4E

triadic

#0F174E #4E0F17 #174E0F

tetradic

#0F174E #4E0F36 #4E460F #0F4E26

square

#0F174E #4E0F36 #4E460F #0F4E26

split-complementary

#0F174E #4E260F #364E0F

monochromatic

#05081A #05081B #0F174E #192681 #2335B5

Accessibility & contrast

On white

16.76

#0F174E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#0F174E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F174E

16.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F174E	#FFFFFF	#000000	##FFFFFF
##0F174E	1.00	16.76	1.25	16.76
#FFFFFF	16.76	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002150

Deuteranopia (green-blind)

#001B4D

Tritanopia (blue-blind)

#002530

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #0f174e;
/* rgb */ color: rgb(15, 23, 78);
/* oklch */ color: oklch(24.0% 0.101 270.3);

Tailwind

colors: {
  custom: {
    50: '#595380',
    500: '#0f174e',
    950: '#000000',
  },
}

SCSS

$custom: #0f174e;
$custom-light: #595380;
$custom-dark: #000000;

JSON

{
  "hex": "#0f174e",
  "rgb": {
    "r": 15,
    "g": 23,
    "b": 78
  },
  "hsl": {
    "h": 232.381,
    "s": 67.742,
    "l": 18.235
  },
  "oklch": {
    "l": 0.24039,
    "c": 0.10073,
    "h": 270.3
  },
  "luminance": 0.01264
}

Semantic roles & 50–950 ramp

primary

#0F174E

secondary

#887D31

accent

#D53DEB

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #0F174E

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

Preview Lab → · Contrast checker → · Palette generator →