#0F173C#0F173C

#0F173C is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.2% C 0.072 H 270.4°. Best body text is #FFFFFF at 17.38:1 contrast (WCAG AA passes).

Color values

HEX	#0F173C
RGB	rgb(15, 23, 60)
HSL	hsl(229, 60%, 15%)
HSV	hsv(229, 75%, 24%)
CMYK	cmyk(75%, 61.7%, 0%, 76.5%)
CIE-LAB	lab(9.32, 10.99, -25.00)
CIE-LCH	lch(9.32, 27.31, 293.73°)
OKLab	oklab(22.25% 0.0005 -0.0718)
OKLCH	oklch(22.25% 0.072 270.4)
XYZ	xyz(1.3187, 1.0405, 4.4054)
Luminance	0.0104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F173C #3C340F

analogous

#0F2E3C #0F173C #1D0F3C

triadic

#0F173C #3C0F17 #173C0F

tetradic

#0F173C #3C0F2E #3C340F #0F3C1D

square

#0F173C #3C0F2E #3C340F #0F3C1D

split-complementary

#0F173C #3C1D0F #2E3C0F

monochromatic

#060918 #060918 #0F173C #1B2A6D #273D9E

Accessibility & contrast

On white

17.38

#0F173C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0F173C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F173C

17.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F173C	#FFFFFF	#000000	##FFFFFF
##0F173C	1.00	17.38	1.21	17.38
#FFFFFF	17.38	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021C3D

Deuteranopia (green-blind)

#00183B

Tritanopia (blue-blind)

#002026

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0f173c;
/* rgb */ color: rgb(15, 23, 60);
/* oklch */ color: oklch(22.2% 0.072 270.4);

Tailwind

colors: {
  custom: {
    50: '#545372',
    500: '#0f173c',
    950: '#000000',
  },
}

SCSS

$custom: #0f173c;
$custom-light: #545372;
$custom-dark: #000000;

JSON

{
  "hex": "#0f173c",
  "rgb": {
    "r": 15,
    "g": 23,
    "b": 60
  },
  "hsl": {
    "h": 229.333,
    "s": 60,
    "l": 14.706
  },
  "oklch": {
    "l": 0.22247,
    "c": 0.0718,
    "h": 270.4
  },
  "luminance": 0.01041
}

Semantic roles & 50–950 ramp

primary

#0F173C

secondary

#766A30

accent

#C745E3

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030208

muted

#78787B

Preview Lab

Preview with #0F173C

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

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