#0F172E#0F172E

#0F172E is a very dark, muted blue. Relative luminance 0.009; OKLCH L 21.1% C 0.047 H 267.8°. Best body text is #FFFFFF at 17.76:1 contrast (WCAG AA passes).

Color values

HEX	#0F172E
RGB	rgb(15, 23, 46)
HSL	hsl(225, 51%, 12%)
HSV	hsv(225, 67%, 18%)
CMYK	cmyk(67.4%, 50%, 0%, 82%)
CIE-LAB	lab(8.23, 4.98, -16.60)
CIE-LCH	lch(8.23, 17.33, 286.71°)
OKLab	oklab(21.06% -0.0018 -0.0471)
OKLCH	oklch(21.06% 0.047 267.8)
XYZ	xyz(0.9964, 0.9115, 2.7077)
Luminance	0.0091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F172E #2E260F

analogous

#0F272E #0F172E #170F2E

triadic

#0F172E #2E0F17 #172E0F

tetradic

#0F172E #2E0F27 #2E260F #0F2E17

square

#0F172E #2E0F27 #2E260F #0F2E17

split-complementary

#0F172E #2E170F #272E0F

monochromatic

#080C17 #080C17 #0F172E #1E2E5C #2D458A

Accessibility & contrast

On white

17.76

#0F172E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0F172E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F172E

17.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F172E	#FFFFFF	#000000	##FFFFFF
##0F172E	1.00	17.76	1.18	17.76
#FFFFFF	17.76	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D192F

Deuteranopia (green-blind)

#0A172E

Tritanopia (blue-blind)

#021C20

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #0f172e;
/* rgb */ color: rgb(15, 23, 46);
/* oklch */ color: oklch(21.1% 0.047 267.8);

Tailwind

colors: {
  custom: {
    50: '#505367',
    500: '#0f172e',
    950: '#000000',
  },
}

SCSS

$custom: #0f172e;
$custom-light: #505367;
$custom-dark: #000000;

JSON

{
  "hex": "#0f172e",
  "rgb": {
    "r": 15,
    "g": 23,
    "b": 46
  },
  "hsl": {
    "h": 224.516,
    "s": 50.82,
    "l": 11.961
  },
  "oklch": {
    "l": 0.21064,
    "c": 0.04716,
    "h": 267.8
  },
  "luminance": 0.00912
}

Semantic roles & 50–950 ramp

primary

#0F172E

secondary

#685A31

accent

#B64DDA

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020206

muted

#78787A

Preview Lab

Preview with #0F172E

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

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