#0A3447#0A3447

#0A3447 is a dark, muted cyan. Relative luminance 0.030; OKLCH L 30.7% C 0.056 H 232.8°. Best body text is #FFFFFF at 13.17:1 contrast (WCAG AA passes).

Color values

HEX	#0A3447
RGB	rgb(10, 52, 71)
HSL	hsl(199, 75%, 16%)
HSV	hsv(199, 86%, 28%)
CMYK	cmyk(85.9%, 26.8%, 0%, 72.2%)
CIE-LAB	lab(19.94, -6.43, -15.80)
CIE-LCH	lch(19.94, 17.06, 247.85°)
OKLab	oklab(30.7% -0.0338 -0.0445)
OKLCH	oklch(30.7% 0.056 232.8)
XYZ	xyz(2.4900, 2.9751, 6.4030)
Luminance	0.0297 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3447 #471D0A

analogous

#0A473B #0A3447 #0A1547

triadic

#0A3447 #470A34 #34470A

tetradic

#0A3447 #3B0A47 #471D0A #15470A

square

#0A3447 #3B0A47 #471D0A #15470A

split-complementary

#0A3447 #470A15 #473B0A

monochromatic

#04141B #04141B #0A3447 #125B7D #1983B2

Accessibility & contrast

On white

13.17

#0A3447 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#0A3447 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3447

13.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3447	#FFFFFF	#000000	##FFFFFF
##0A3447	1.00	13.17	1.60	13.17
#FFFFFF	13.17	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3348

Deuteranopia (green-blind)

#222E47

Tritanopia (blue-blind)

#00393A

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #0a3447;
/* rgb */ color: rgb(10, 52, 71);
/* oklch */ color: oklch(30.7% 0.056 232.8);

Tailwind

colors: {
  custom: {
    50: '#546b7a',
    500: '#0a3447',
    950: '#000000',
  },
}

SCSS

$custom: #0a3447;
$custom-light: #546b7a;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3447",
  "rgb": {
    "r": 10,
    "g": 52,
    "b": 71
  },
  "hsl": {
    "h": 198.689,
    "s": 75.309,
    "l": 15.882
  },
  "oklch": {
    "l": 0.307,
    "c": 0.05587,
    "h": 232.8
  },
  "luminance": 0.02975
}

Semantic roles & 50–950 ramp

primary

#0A3447

secondary

#844529

accent

#7036F2

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030609

muted

#787A7B

Preview Lab

Preview with #0A3447

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

Preview Lab → · Contrast checker → · Palette generator →