#0A3347#0A3347

#0A3347 is a dark, muted cyan. Relative luminance 0.029; OKLCH L 30.4% C 0.057 H 234.7°. Best body text is #FFFFFF at 13.31:1 contrast (WCAG AA passes).

Color values

HEX	#0A3347
RGB	rgb(10, 51, 71)
HSL	hsl(200, 75%, 16%)
HSV	hsv(200, 86%, 28%)
CMYK	cmyk(85.9%, 28.2%, 0%, 72.2%)
CIE-LAB	lab(19.58, -5.77, -16.36)
CIE-LCH	lch(19.58, 17.35, 250.59°)
OKLab	oklab(30.41% -0.0326 -0.0461)
OKLCH	oklch(30.41% 0.057 234.7)
XYZ	xyz(2.4459, 2.8868, 6.3883)
Luminance	0.0289 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3347 #471E0A

analogous

#0A473C #0A3347 #0A1447

triadic

#0A3347 #470A33 #33470A

tetradic

#0A3347 #3C0A47 #471E0A #14470A

square

#0A3347 #3C0A47 #471E0A #14470A

split-complementary

#0A3347 #470A14 #473C0A

monochromatic

#04131B #04131B #0A3347 #125A7D #1980B2

Accessibility & contrast

On white

13.31

#0A3347 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#0A3347 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3347

13.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3347	#FFFFFF	#000000	##FFFFFF
##0A3347	1.00	13.31	1.58	13.31
#FFFFFF	13.31	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293348

Deuteranopia (green-blind)

#212D47

Tritanopia (blue-blind)

#00383A

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #0a3347;
/* rgb */ color: rgb(10, 51, 71);
/* oklch */ color: oklch(30.4% 0.057 234.7);

Tailwind

colors: {
  custom: {
    50: '#546a7a',
    500: '#0a3347',
    950: '#000000',
  },
}

SCSS

$custom: #0a3347;
$custom-light: #546a7a;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3347",
  "rgb": {
    "r": 10,
    "g": 51,
    "b": 71
  },
  "hsl": {
    "h": 199.672,
    "s": 75.309,
    "l": 15.882
  },
  "oklch": {
    "l": 0.30414,
    "c": 0.05651,
    "h": 234.7
  },
  "luminance": 0.02887
}

Semantic roles & 50–950 ramp

primary

#0A3347

secondary

#844729

accent

#7436F2

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030609

muted

#787A7B

Preview Lab

Preview with #0A3347

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

Preview Lab → · Contrast checker → · Palette generator →