#0A192A#0A192A

#0A192A is a very dark, muted cyan. Relative luminance 0.009; OKLCH L 21.0% C 0.040 H 252.8°. Best body text is #FFFFFF at 17.72:1 contrast (WCAG AA passes).

Color values

HEX	#0A192A
RGB	rgb(10, 25, 42)
HSL	hsl(212, 62%, 10%)
HSV	hsv(212, 76%, 16%)
CMYK	cmyk(76.2%, 40.5%, 0%, 83.5%)
CIE-LAB	lab(8.37, 0.38, -13.45)
CIE-LCH	lch(8.37, 13.46, 271.62°)
OKLab	oklab(21% -0.0117 -0.038)
OKLCH	oklch(21% 0.04 252.8)
XYZ	xyz(0.8906, 0.9269, 2.3220)
Luminance	0.0093 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A192A #2A1B0A

analogous

#0A292A #0A192A #0B0A2A

triadic

#0A192A #2A0A19 #192A0A

tetradic

#0A192A #2A0A29 #2A1B0A #0A2A0B

square

#0A192A #2A0A29 #2A1B0A #0A2A0B

split-complementary

#0A192A #2A0B0A #292A0A

monochromatic

#060F19 #060F19 #0A192A #16365B #22548D

Accessibility & contrast

On white

17.72

#0A192A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#0A192A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A192A

17.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A192A	#FFFFFF	#000000	##FFFFFF
##0A192A	1.00	17.72	1.19	17.72
#FFFFFF	17.72	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#121A2B

Deuteranopia (green-blind)

#0D172A

Tritanopia (blue-blind)

#001D1F

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #0a192a;
/* rgb */ color: rgb(10, 25, 42);
/* oklch */ color: oklch(21.0% 0.040 252.8);

Tailwind

colors: {
  custom: {
    50: '#4d5563',
    500: '#0a192a',
    950: '#000000',
  },
}

SCSS

$custom: #0a192a;
$custom-light: #4d5563;
$custom-dark: #000000;

JSON

{
  "hex": "#0a192a",
  "rgb": {
    "r": 10,
    "g": 25,
    "b": 42
  },
  "hsl": {
    "h": 211.875,
    "s": 61.538,
    "l": 10.196
  },
  "oklch": {
    "l": 0.20995,
    "c": 0.03978,
    "h": 252.8
  },
  "luminance": 0.00927
}

Semantic roles & 50–950 ramp

primary

#0A192A

secondary

#674A29

accent

#9943E5

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#010305

muted

#777879

Preview Lab

Preview with #0A192A

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

Preview Lab → · Contrast checker → · Palette generator →