#0A3647#0A3647

#0A3647 is a dark, muted cyan. Relative luminance 0.032; OKLCH L 31.3% C 0.055 H 228.9°. Best body text is #FFFFFF at 12.87:1 contrast (WCAG AA passes).

Color values

HEX	#0A3647
RGB	rgb(10, 54, 71)
HSL	hsl(197, 75%, 16%)
HSV	hsv(197, 86%, 28%)
CMYK	cmyk(85.9%, 23.9%, 0%, 72.2%)
CIE-LAB	lab(20.66, -7.74, -14.68)
CIE-LCH	lch(20.66, 16.60, 242.19°)
OKLab	oklab(31.28% -0.036 -0.0413)
OKLCH	oklch(31.28% 0.055 228.9)
XYZ	xyz(2.5812, 3.1575, 6.4334)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3647 #471B0A

analogous

#0A4739 #0A3647 #0A1747

triadic

#0A3647 #470A36 #36470A

tetradic

#0A3647 #390A47 #471B0A #17470A

square

#0A3647 #390A47 #471B0A #17470A

split-complementary

#0A3647 #470A17 #47390A

monochromatic

#04141B #04141B #0A3647 #125F7D #1988B2

Accessibility & contrast

On white

12.87

#0A3647 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#0A3647 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3647

12.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3647	#FFFFFF	#000000	##FFFFFF
##0A3647	1.00	12.87	1.63	12.87
#FFFFFF	12.87	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3548

Deuteranopia (green-blind)

#252F47

Tritanopia (blue-blind)

#003B3C

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #0a3647;
/* rgb */ color: rgb(10, 54, 71);
/* oklch */ color: oklch(31.3% 0.055 228.9);

Tailwind

colors: {
  custom: {
    50: '#556d7a',
    500: '#0a3647',
    950: '#000000',
  },
}

SCSS

$custom: #0a3647;
$custom-light: #556d7a;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3647",
  "rgb": {
    "r": 10,
    "g": 54,
    "b": 71
  },
  "hsl": {
    "h": 196.721,
    "s": 75.309,
    "l": 15.882
  },
  "oklch": {
    "l": 0.31275,
    "c": 0.0548,
    "h": 228.9
  },
  "luminance": 0.03158
}

Semantic roles & 50–950 ramp

primary

#0A3647

secondary

#844229

accent

#6A36F2

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030709

muted

#787A7B

Preview Lab

Preview with #0A3647

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

Preview Lab → · Contrast checker → · Palette generator →