#0A2A3B#0A2A3B

#0A2A3B is a dark, muted cyan. Relative luminance 0.020; OKLCH L 27.1% C 0.048 H 236.0°. Best body text is #FFFFFF at 14.92:1 contrast (WCAG AA passes).

Color values

HEX	#0A2A3B
RGB	rgb(10, 42, 59)
HSL	hsl(201, 71%, 14%)
HSV	hsv(201, 83%, 23%)
CMYK	cmyk(83.1%, 28.8%, 0%, 76.9%)
CIE-LAB	lab(15.68, -4.70, -14.22)
CIE-LCH	lch(15.68, 14.97, 251.72°)
OKLab	oklab(27.09% -0.027 -0.04)
OKLCH	oklch(27.09% 0.048 236)
XYZ	xyz(1.7422, 2.0360, 4.4380)
Luminance	0.0204 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A2A3B #3B1B0A

analogous

#0A3B33 #0A2A3B #0A113B

triadic

#0A2A3B #3B0A2A #2A3B0A

tetradic

#0A2A3B #330A3B #3B1B0A #113B0A

square

#0A2A3B #330A3B #3B1B0A #113B0A

split-complementary

#0A2A3B #3B0A11 #3B330A

monochromatic

#04131A #04131A #0A2A3B #134F6F #1C75A4

Accessibility & contrast

On white

14.92

#0A2A3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#0A2A3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A2A3B

14.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A2A3B	#FFFFFF	#000000	##FFFFFF
##0A2A3B	1.00	14.92	1.41	14.92
#FFFFFF	14.92	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#222A3C

Deuteranopia (green-blind)

#1B253B

Tritanopia (blue-blind)

#002E30

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #0a2a3b;
/* rgb */ color: rgb(10, 42, 59);
/* oklch */ color: oklch(27.1% 0.048 236.0);

Tailwind

colors: {
  custom: {
    50: '#516371',
    500: '#0a2a3b',
    950: '#000000',
  },
}

SCSS

$custom: #0a2a3b;
$custom-light: #516371;
$custom-dark: #000000;

JSON

{
  "hex": "#0a2a3b",
  "rgb": {
    "r": 10,
    "g": 42,
    "b": 59
  },
  "hsl": {
    "h": 200.816,
    "s": 71.014,
    "l": 13.529
  },
  "oklch": {
    "l": 0.27092,
    "c": 0.04832,
    "h": 236
  },
  "luminance": 0.02036
}

Semantic roles & 50–950 ramp

primary

#0A2A3B

secondary

#784428

accent

#783AEE

background

#F4F5F6

surface

#E7EAEC

border

#C3C6C7

text

#020507

muted

#78797A

Preview Lab

Preview with #0A2A3B

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

Preview Lab → · Contrast checker → · Palette generator →