#0F102B#0F102B

#0F102B is a very dark, muted blue. Relative luminance 0.006; OKLCH L 19.0% C 0.054 H 278.4°. Best body text is #FFFFFF at 18.59:1 contrast (WCAG AA passes).

Color values

HEX	#0F102B
RGB	rgb(15, 16, 43)
HSL	hsl(238, 48%, 11%)
HSV	hsv(238, 65%, 17%)
CMYK	cmyk(65.1%, 62.8%, 0%, 83.1%)
CIE-LAB	lab(5.84, 8.35, -18.16)
CIE-LCH	lch(5.84, 19.99, 294.68°)
OKLab	oklab(19% 0.0078 -0.0529)
OKLCH	oklch(19% 0.054 278.4)
XYZ	xyz(0.8182, 0.6465, 2.3667)
Luminance	0.0065 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.88

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F102B #2B2A0F

analogous

#0F1E2B #0F102B #1C0F2B

triadic

#0F102B #2B0F10 #102B0F

tetradic

#0F102B #2B0F1E #2B2A0F #0F2B1C

square

#0F102B #2B0F1E #2B2A0F #0F2B1C

split-complementary

#0F102B #2B1C0F #1E2B0F

monochromatic

#080817 #080817 #0F102B #1F2158 #2F3286

Accessibility & contrast

On white

18.59

#0F102B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#0F102B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F102B

18.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F102B	#FFFFFF	#000000	##FFFFFF
##0F102B	1.00	18.59	1.13	18.59
#FFFFFF	18.59	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#04142C

Deuteranopia (green-blind)

#02122A

Tritanopia (blue-blind)

#04161B

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #0f102b;
/* rgb */ color: rgb(15, 16, 43);
/* oklch */ color: oklch(19.0% 0.054 278.4);

Tailwind

colors: {
  custom: {
    50: '#4f4e64',
    500: '#0f102b',
    950: '#000000',
  },
}

SCSS

$custom: #0f102b;
$custom-light: #4f4e64;
$custom-dark: #000000;

JSON

{
  "hex": "#0f102b",
  "rgb": {
    "r": 15,
    "g": 16,
    "b": 43
  },
  "hsl": {
    "h": 237.857,
    "s": 48.276,
    "l": 11.373
  },
  "oklch": {
    "l": 0.18995,
    "c": 0.05352,
    "h": 278.4
  },
  "luminance": 0.00647
}

Semantic roles & 50–950 ramp

primary

#0F102B

secondary

#646232

accent

#D350D8

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020105

muted

#78777A

Preview Lab

Preview with #0F102B

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

Preview Lab → · Contrast checker → · Palette generator →