#0F0F5B#0F0F5B

#0F0F5B is a very dark, vivid blue. Relative luminance 0.012; OKLCH L 24.1% C 0.129 H 271.3°. Best body text is #FFFFFF at 16.94:1 contrast (WCAG AA passes).

Color values

HEX	#0F0F5B
RGB	rgb(15, 15, 91)
HSL	hsl(240, 72%, 21%)
HSV	hsv(240, 84%, 36%)
CMYK	cmyk(83.5%, 83.5%, 0%, 64.3%)
CIE-LAB	lab(10.54, 29.27, -44.49)
CIE-LCH	lch(10.54, 53.25, 303.34°)
OKLab	oklab(24.14% 0.003 -0.1288)
OKLCH	oklch(24.14% 0.129 271.3)
XYZ	xyz(2.2555, 1.1983, 10.0079)
Luminance	0.0120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F0F5B #5B5B0F

analogous

#0F355B #0F0F5B #350F5B

triadic

#0F0F5B #5B0F0F #0F5B0F

tetradic

#0F0F5B #5B0F35 #5B5B0F #0F5B35

square

#0F0F5B #5B0F35 #5B5B0F #0F5B35

split-complementary

#0F0F5B #5B350F #355B0F

monochromatic

#04041A #060626 #0F0F5B #181890 #2020C4

Accessibility & contrast

On white

16.94

#0F0F5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#0F0F5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F0F5B

16.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F0F5B	#FFFFFF	#000000	##FFFFFF
##0F0F5B	1.00	16.94	1.24	16.94
#FFFFFF	16.94	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00205D

Deuteranopia (green-blind)

#00195A

Tritanopia (blue-blind)

#002635

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #0f0f5b;
/* rgb */ color: rgb(15, 15, 91);
/* oklch */ color: oklch(24.1% 0.129 271.3);

Tailwind

colors: {
  custom: {
    50: '#5e4f8a',
    500: '#0f0f5b',
    950: '#000000',
  },
}

SCSS

$custom: #0f0f5b;
$custom-light: #5e4f8a;
$custom-dark: #000000;

JSON

{
  "hex": "#0f0f5b",
  "rgb": {
    "r": 15,
    "g": 15,
    "b": 91
  },
  "hsl": {
    "h": 240,
    "s": 71.698,
    "l": 20.784
  },
  "oklch": {
    "l": 0.24142,
    "c": 0.12885,
    "h": 271.3
  },
  "luminance": 0.01199
}

Semantic roles & 50–950 ramp

primary

#0F0F5B

secondary

#959531

accent

#EE39EE

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05020C

muted

#79787D

Preview Lab

Preview with #0F0F5B

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

Preview Lab → · Contrast checker → · Palette generator →