#0A2B39#0A2B39

#0A2B39 is a dark, muted cyan. Relative luminance 0.021; OKLCH L 27.3% C 0.045 H 230.1°. Best body text is #FFFFFF at 14.81:1 contrast (WCAG AA passes).

Color values

HEX	#0A2B39
RGB	rgb(10, 43, 57)
HSL	hsl(198, 70%, 13%)
HSV	hsv(198, 82%, 22%)
CMYK	cmyk(82.5%, 24.6%, 0%, 77.6%)
CIE-LAB	lab(15.94, -6.22, -12.41)
CIE-LCH	lch(15.94, 13.88, 243.40°)
OKLab	oklab(27.27% -0.0291 -0.0348)
OKLCH	oklch(27.27% 0.045 230.1)
XYZ	xyz(1.7273, 2.0875, 4.1820)
Luminance	0.0209 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A2B39 #39180A

analogous

#0A392F #0A2B39 #0A1339

triadic

#0A2B39 #390A2B #2B390A

tetradic

#0A2B39 #2F0A39 #39180A #13390A

square

#0A2B39 #2F0A39 #39180A #13390A

split-complementary

#0A2B39 #390A13 #392F0A

monochromatic

#05141A #05141A #0A2B39 #13526D #1C7AA1

Accessibility & contrast

On white

14.81

#0A2B39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#0A2B39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A2B39

14.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A2B39	#FFFFFF	#000000	##FFFFFF
##0A2B39	1.00	14.81	1.42	14.81
#FFFFFF	14.81	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#242A3A

Deuteranopia (green-blind)

#1D2639

Tritanopia (blue-blind)

#002F30

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #0a2b39;
/* rgb */ color: rgb(10, 43, 57);
/* oklch */ color: oklch(27.3% 0.045 230.1);

Tailwind

colors: {
  custom: {
    50: '#51646f',
    500: '#0a2b39',
    950: '#000000',
  },
}

SCSS

$custom: #0a2b39;
$custom-light: #51646f;
$custom-dark: #000000;

JSON

{
  "hex": "#0a2b39",
  "rgb": {
    "r": 10,
    "g": 43,
    "b": 57
  },
  "hsl": {
    "h": 197.872,
    "s": 70.149,
    "l": 13.137
  },
  "oklch": {
    "l": 0.27268,
    "c": 0.04541,
    "h": 230.1
  },
  "luminance": 0.02088
}

Semantic roles & 50–950 ramp

primary

#0A2B39

secondary

#764028

accent

#703BED

background

#F4F5F6

surface

#E7EAEC

border

#C3C6C7

text

#020507

muted

#78797A

Preview Lab

Preview with #0A2B39

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

Preview Lab → · Contrast checker → · Palette generator →