#0A203B#0A203B

#0A203B is a very dark, muted cyan. Relative luminance 0.014; OKLCH L 24.2% C 0.059 H 255.1°. Best body text is #FFFFFF at 16.37:1 contrast (WCAG AA passes).

Color values

HEX	#0A203B
RGB	rgb(10, 32, 59)
HSL	hsl(213, 71%, 14%)
HSV	hsv(213, 83%, 23%)
CMYK	cmyk(83.1%, 45.8%, 0%, 76.9%)
CIE-LAB	lab(12.05, 2.57, -19.93)
CIE-LCH	lch(12.05, 20.10, 277.35°)
OKLab	oklab(24.23% -0.0151 -0.0568)
OKLCH	oklch(24.23% 0.059 255.1)
XYZ	xyz(1.4308, 1.4132, 4.3342)
Luminance	0.0141 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A203B #3B250A

analogous

#0A383B #0A203B #0C0A3B

triadic

#0A203B #3B0A20 #203B0A

tetradic

#0A203B #3B0A38 #3B250A #0A3B0C

square

#0A203B #3B0A38 #3B250A #0A3B0C

split-complementary

#0A203B #3B0C0A #383B0A

monochromatic

#040E1A #040E1A #0A203B #133C6F #1C59A4

Accessibility & contrast

On white

16.37

#0A203B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#0A203B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A203B

16.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A203B	#FFFFFF	#000000	##FFFFFF
##0A203B	1.00	16.37	1.28	16.37
#FFFFFF	16.37	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13223C

Deuteranopia (green-blind)

#0C1E3A

Tritanopia (blue-blind)

#00262A

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #0a203b;
/* rgb */ color: rgb(10, 32, 59);
/* oklch */ color: oklch(24.2% 0.059 255.1);

Tailwind

colors: {
  custom: {
    50: '#515b71',
    500: '#0a203b',
    950: '#000000',
  },
}

SCSS

$custom: #0a203b;
$custom-light: #515b71;
$custom-dark: #000000;

JSON

{
  "hex": "#0a203b",
  "rgb": {
    "r": 10,
    "g": 32,
    "b": 59
  },
  "hsl": {
    "h": 213.061,
    "s": 71.014,
    "l": 13.529
  },
  "oklch": {
    "l": 0.24233,
    "c": 0.05883,
    "h": 255.1
  },
  "luminance": 0.01413
}

Semantic roles & 50–950 ramp

primary

#0A203B

secondary

#785428

accent

#9D3AEE

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #0A203B

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

Preview Lab → · Contrast checker → · Palette generator →