#0A3949#0A3949

#0A3949 is a dark, muted cyan. Relative luminance 0.035; OKLCH L 32.3% C 0.055 H 225.9°. Best body text is #FFFFFF at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#0A3949
RGB	rgb(10, 57, 73)
HSL	hsl(195, 76%, 16%)
HSV	hsv(195, 86%, 29%)
CMYK	cmyk(86.3%, 21.9%, 0%, 71.4%)
CIE-LAB	lab(21.84, -8.86, -14.20)
CIE-LCH	lch(21.84, 16.74, 238.04°)
OKLab	oklab(32.25% -0.0386 -0.0399)
OKLCH	oklch(32.25% 0.055 225.9)
XYZ	xyz(2.7904, 3.4715, 6.8250)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3949 #491A0A

analogous

#0A493A #0A3949 #0A1A49

triadic

#0A3949 #490A39 #39490A

tetradic

#0A3949 #3A0A49 #491A0A #1A490A

square

#0A3949 #3A0A49 #491A0A #1A490A

split-complementary

#0A3949 #490A1A #493A0A

monochromatic

#04151B #04151B #0A3949 #11637F #198DB5

Accessibility & contrast

On white

12.39

#0A3949 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#0A3949 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3949

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3949	#FFFFFF	#000000	##FFFFFF
##0A3949	1.00	12.39	1.69	12.39
#FFFFFF	12.39	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#30384A

Deuteranopia (green-blind)

#283249

Tritanopia (blue-blind)

#003E3E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #0a3949;
/* rgb */ color: rgb(10, 57, 73);
/* oklch */ color: oklch(32.3% 0.055 225.9);

Tailwind

colors: {
  custom: {
    50: '#556f7b',
    500: '#0a3949',
    950: '#000000',
  },
}

SCSS

$custom: #0a3949;
$custom-light: #556f7b;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3949",
  "rgb": {
    "r": 10,
    "g": 57,
    "b": 73
  },
  "hsl": {
    "h": 195.238,
    "s": 75.904,
    "l": 16.275
  },
  "oklch": {
    "l": 0.3225,
    "c": 0.05549,
    "h": 225.9
  },
  "luminance": 0.03472
}

Semantic roles & 50–950 ramp

primary

#0A3949

secondary

#864129

accent

#6535F2

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#030709

muted

#787A7B

Preview Lab

Preview with #0A3949

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

Preview Lab → · Contrast checker → · Palette generator →