#0F0F51#0F0F51

#0F0F51 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.9% C 0.115 H 272.6°. Best body text is #FFFFFF at 17.39:1 contrast (WCAG AA passes).

Color values

HEX	#0F0F51
RGB	rgb(15, 15, 81)
HSL	hsl(240, 69%, 19%)
HSV	hsv(240, 81%, 32%)
CMYK	cmyk(81.5%, 81.5%, 0%, 68.2%)
CIE-LAB	lab(9.30, 25.52, -39.75)
CIE-LCH	lch(9.30, 47.24, 302.70°)
OKLab	oklab(22.89% 0.0052 -0.115)
OKLCH	oklch(22.89% 0.115 272.6)
XYZ	xyz(1.8525, 1.0371, 7.8855)
Luminance	0.0104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F0F51 #51510F

analogous

#0F3051 #0F0F51 #300F51

triadic

#0F0F51 #510F0F #0F510F

tetradic

#0F0F51 #510F30 #51510F #0F5130

square

#0F0F51 #510F30 #51510F #0F5130

split-complementary

#0F0F51 #51300F #30510F

monochromatic

#05051A #05051D #0F0F51 #191985 #2222B8

Accessibility & contrast

On white

17.39

#0F0F51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0F0F51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F0F51

17.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F0F51	#FFFFFF	#000000	##FFFFFF
##0F0F51	1.00	17.39	1.21	17.39
#FFFFFF	17.39	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D53

Deuteranopia (green-blind)

#001750

Tritanopia (blue-blind)

#00222F

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0f0f51;
/* rgb */ color: rgb(15, 15, 81);
/* oklch */ color: oklch(22.9% 0.115 272.6);

Tailwind

colors: {
  custom: {
    50: '#5b4e83',
    500: '#0f0f51',
    950: '#000000',
  },
}

SCSS

$custom: #0f0f51;
$custom-light: #5b4e83;
$custom-dark: #000000;

JSON

{
  "hex": "#0f0f51",
  "rgb": {
    "r": 15,
    "g": 15,
    "b": 81
  },
  "hsl": {
    "h": 240,
    "s": 68.75,
    "l": 18.824
  },
  "oklch": {
    "l": 0.22894,
    "c": 0.11516,
    "h": 272.6
  },
  "luminance": 0.01037
}

Semantic roles & 50–950 ramp

primary

#0F0F51

secondary

#8B8B31

accent

#EC3CEC

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04010B

muted

#79777C

Preview Lab

Preview with #0F0F51

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

Preview Lab → · Contrast checker → · Palette generator →