#0A1F2F#0A1F2F

#0A1F2F is a very dark, muted cyan. Relative luminance 0.013; OKLCH L 23.1% C 0.041 H 244.0°. Best body text is #FFFFFF at 16.80:1 contrast (WCAG AA passes).

Color values

HEX	#0A1F2F
RGB	rgb(10, 31, 47)
HSL	hsl(206, 65%, 11%)
HSV	hsv(206, 79%, 18%)
CMYK	cmyk(78.7%, 34%, 0%, 81.6%)
CIE-LAB	lab(10.92, -1.97, -13.11)
CIE-LCH	lch(10.92, 13.26, 261.44°)
OKLab	oklab(23.1% -0.018 -0.037)
OKLCH	oklch(23.1% 0.041 244)
XYZ	xyz(1.1281, 1.2496, 2.8705)
Luminance	0.0125 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1F2F #2F1A0A

analogous

#0A2F2C #0A1F2F #0A0C2F

triadic

#0A1F2F #2F0A1F #1F2F0A

tetradic

#0A1F2F #2C0A2F #2F1A0A #0C2F0A

square

#0A1F2F #2C0A2F #2F1A0A #0C2F0A

split-complementary

#0A1F2F #2F0A0C #2F2C0A

monochromatic

#051119 #051119 #0A1F2F #154061 #1F6294

Accessibility & contrast

On white

16.80

#0A1F2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#0A1F2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1F2F

16.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1F2F	#FFFFFF	#000000	##FFFFFF
##0A1F2F	1.00	16.80	1.25	16.80
#FFFFFF	16.80	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181F30

Deuteranopia (green-blind)

#131C2F

Tritanopia (blue-blind)

#002325

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #0a1f2f;
/* rgb */ color: rgb(10, 31, 47);
/* oklch */ color: oklch(23.1% 0.041 244.0);

Tailwind

colors: {
  custom: {
    50: '#4e5a67',
    500: '#0a1f2f',
    950: '#000000',
  },
}

SCSS

$custom: #0a1f2f;
$custom-light: #4e5a67;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1f2f",
  "rgb": {
    "r": 10,
    "g": 31,
    "b": 47
  },
  "hsl": {
    "h": 205.946,
    "s": 64.912,
    "l": 11.176
  },
  "oklch": {
    "l": 0.23101,
    "c": 0.04112,
    "h": 244
  },
  "luminance": 0.0125
}

Semantic roles & 50–950 ramp

primary

#0A1F2F

secondary

#6C4629

accent

#8940E8

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #0A1F2F

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

Preview Lab → · Contrast checker → · Palette generator →