#0F105A#0F105A

#0F105A is a very dark, vivid blue. Relative luminance 0.012; OKLCH L 24.2% C 0.126 H 271.3°. Best body text is #FFFFFF at 16.91:1 contrast (WCAG AA passes).

Color values

HEX	#0F105A
RGB	rgb(15, 16, 90)
HSL	hsl(239, 71%, 21%)
HSV	hsv(239, 83%, 35%)
CMYK	cmyk(83.3%, 82.2%, 0%, 64.7%)
CIE-LAB	lab(10.63, 28.29, -43.67)
CIE-LCH	lch(10.63, 52.03, 302.93°)
OKLab	oklab(24.17% 0.0028 -0.1264)
OKLCH	oklch(24.17% 0.126 271.3)
XYZ	xyz(2.2271, 1.2101, 9.7871)
Luminance	0.0121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F105A #5A590F

analogous

#0F355A #0F105A #330F5A

triadic

#0F105A #5A0F10 #105A0F

tetradic

#0F105A #5A0F35 #5A590F #0F5A33

square

#0F105A #5A0F35 #5A590F #0F5A33

split-complementary

#0F105A #5A330F #355A0F

monochromatic

#04051A #060726 #0F105A #18198E #2023C3

Accessibility & contrast

On white

16.91

#0F105A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#0F105A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F105A

16.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F105A	#FFFFFF	#000000	##FFFFFF
##0F105A	1.00	16.91	1.24	16.91
#FFFFFF	16.91	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00205C

Deuteranopia (green-blind)

#001959

Tritanopia (blue-blind)

#002634

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #0f105a;
/* rgb */ color: rgb(15, 16, 90);
/* oklch */ color: oklch(24.2% 0.126 271.3);

Tailwind

colors: {
  custom: {
    50: '#5d4f8a',
    500: '#0f105a',
    950: '#000000',
  },
}

SCSS

$custom: #0f105a;
$custom-light: #5d4f8a;
$custom-dark: #000000;

JSON

{
  "hex": "#0f105a",
  "rgb": {
    "r": 15,
    "g": 16,
    "b": 90
  },
  "hsl": {
    "h": 239.2,
    "s": 71.429,
    "l": 20.588
  },
  "oklch": {
    "l": 0.24166,
    "c": 0.12648,
    "h": 271.3
  },
  "luminance": 0.0121
}

Semantic roles & 50–950 ramp

primary

#0F105A

secondary

#949231

accent

#EC3AEE

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05020C

muted

#79787D

Preview Lab

Preview with #0F105A

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

Preview Lab → · Contrast checker → · Palette generator →