#0A2138#0A2138

#0A2138 is a very dark, muted cyan. Relative luminance 0.014; OKLCH L 24.3% C 0.053 H 250.9°. Best body text is #FFFFFF at 16.31:1 contrast (WCAG AA passes).

Color values

HEX	#0A2138
RGB	rgb(10, 33, 56)
HSL	hsl(210, 70%, 13%)
HSV	hsv(210, 82%, 22%)
CMYK	cmyk(82.1%, 41.1%, 0%, 78%)
CIE-LAB	lab(12.21, 0.48, -17.55)
CIE-LCH	lch(12.21, 17.56, 271.56°)
OKLab	oklab(24.29% -0.0173 -0.0498)
OKLCH	oklch(24.29% 0.053 250.9)
XYZ	xyz(1.3826, 1.4376, 3.9452)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A2138 #38210A

analogous

#0A3838 #0A2138 #0A0A38

triadic

#0A2138 #380A21 #21380A

tetradic

#0A2138 #380A38 #38210A #0A380A

square

#0A2138 #380A38 #38210A #0A380A

split-complementary

#0A2138 #380A0A #38380A

monochromatic

#050F1A #050F1A #0A2138 #13406C #1D5EA0

Accessibility & contrast

On white

16.31

#0A2138 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#0A2138 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A2138

16.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A2138	#FFFFFF	#000000	##FFFFFF
##0A2138	1.00	16.31	1.29	16.31
#FFFFFF	16.31	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#172239

Deuteranopia (green-blind)

#101E38

Tritanopia (blue-blind)

#002629

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #0a2138;
/* rgb */ color: rgb(10, 33, 56);
/* oklch */ color: oklch(24.3% 0.053 250.9);

Tailwind

colors: {
  custom: {
    50: '#505b6e',
    500: '#0a2138',
    950: '#000000',
  },
}

SCSS

$custom: #0a2138;
$custom-light: #505b6e;
$custom-dark: #000000;

JSON

{
  "hex": "#0a2138",
  "rgb": {
    "r": 10,
    "g": 33,
    "b": 56
  },
  "hsl": {
    "h": 210,
    "s": 69.697,
    "l": 12.941
  },
  "oklch": {
    "l": 0.24294,
    "c": 0.05275,
    "h": 250.9
  },
  "luminance": 0.01438
}

Semantic roles & 50–950 ramp

primary

#0A2138

secondary

#754F28

accent

#943BED

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #0A2138

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

Preview Lab → · Contrast checker → · Palette generator →