#0A1A2D#0A1A2D

#0A1A2D is a very dark, muted cyan. Relative luminance 0.010; OKLCH L 21.5% C 0.044 H 253.9°. Best body text is #FFFFFF at 17.52:1 contrast (WCAG AA passes).

Color values

HEX	#0A1A2D
RGB	rgb(10, 26, 45)
HSL	hsl(213, 64%, 11%)
HSV	hsv(213, 78%, 18%)
CMYK	cmyk(77.8%, 42.2%, 0%, 82.4%)
CIE-LAB	lab(8.93, 0.92, -14.78)
CIE-LCH	lch(8.93, 14.81, 273.58°)
OKLab	oklab(21.5% -0.012 -0.0419)
OKLCH	oklch(21.5% 0.044 253.9)
XYZ	xyz(0.9681, 0.9927, 2.6227)
Luminance	0.0099 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1A2D #2D1D0A

analogous

#0A2B2D #0A1A2D #0B0A2D

triadic

#0A1A2D #2D0A1A #1A2D0A

tetradic

#0A1A2D #2D0A2B #2D1D0A #0A2D0B

square

#0A1A2D #2D0A2B #2D1D0A #0A2D0B

split-complementary

#0A1A2D #2D0B0A #2B2D0A

monochromatic

#060E19 #060E19 #0A1A2D #15375F #205491

Accessibility & contrast

On white

17.52

#0A1A2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#0A1A2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1A2D

17.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1A2D	#FFFFFF	#000000	##FFFFFF
##0A1A2D	1.00	17.52	1.20	17.52
#FFFFFF	17.52	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#121B2E

Deuteranopia (green-blind)

#0D182D

Tritanopia (blue-blind)

#001E21

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #0a1a2d;
/* rgb */ color: rgb(10, 26, 45);
/* oklch */ color: oklch(21.5% 0.044 253.9);

Tailwind

colors: {
  custom: {
    50: '#4d5666',
    500: '#0a1a2d',
    950: '#000000',
  },
}

SCSS

$custom: #0a1a2d;
$custom-light: #4d5666;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1a2d",
  "rgb": {
    "r": 10,
    "g": 26,
    "b": 45
  },
  "hsl": {
    "h": 212.571,
    "s": 63.636,
    "l": 10.784
  },
  "oklch": {
    "l": 0.21498,
    "c": 0.04356,
    "h": 253.9
  },
  "luminance": 0.00993
}

Semantic roles & 50–950 ramp

primary

#0A1A2D

secondary

#6A4C29

accent

#9B41E7

background

#F4F5F6

surface

#E7E8EB

border

#C3C4C6

text

#010305

muted

#77787A

Preview Lab

Preview with #0A1A2D

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

Preview Lab → · Contrast checker → · Palette generator →