#0A3140#0A3140

#0A3140 is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.4% C 0.050 H 228.2°. Best body text is #FFFFFF at 13.76:1 contrast (WCAG AA passes).

Color values

HEX	#0A3140
RGB	rgb(10, 49, 64)
HSL	hsl(197, 73%, 15%)
HSV	hsv(197, 84%, 25%)
CMYK	cmyk(84.4%, 23.4%, 0%, 74.9%)
CIE-LAB	lab(18.50, -7.34, -13.28)
CIE-LCH	lch(18.50, 15.17, 241.08°)
OKLab	oklab(29.43% -0.0333 -0.0373)
OKLCH	oklch(29.43% 0.05 228.2)
XYZ	xyz(2.1485, 2.6311, 5.2441)
Luminance	0.0263 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3140 #40190A

analogous

#0A4034 #0A3140 #0A1640

triadic

#0A3140 #400A31 #31400A

tetradic

#0A3140 #340A40 #40190A #16400A

square

#0A3140 #340A40 #40190A #16400A

split-complementary

#0A3140 #400A16 #40340A

monochromatic

#04141A #04141A #0A3140 #125A75 #1B82AA

Accessibility & contrast

On white

13.76

#0A3140 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#0A3140 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3140

13.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3140	#FFFFFF	#000000	##FFFFFF
##0A3140	1.00	13.76	1.53	13.76
#FFFFFF	13.76	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293041

Deuteranopia (green-blind)

#222B40

Tritanopia (blue-blind)

#003536

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #0a3140;
/* rgb */ color: rgb(10, 49, 64);
/* oklch */ color: oklch(29.4% 0.050 228.2);

Tailwind

colors: {
  custom: {
    50: '#536974',
    500: '#0a3140',
    950: '#000000',
  },
}

SCSS

$custom: #0a3140;
$custom-light: #536974;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3140",
  "rgb": {
    "r": 10,
    "g": 49,
    "b": 64
  },
  "hsl": {
    "h": 196.667,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.29431,
    "c": 0.04999,
    "h": 228.2
  },
  "luminance": 0.02631
}

Semantic roles & 50–950 ramp

primary

#0A3140

secondary

#7D4029

accent

#6B38F0

background

#F4F6F7

surface

#E8EBED

border

#C4C6C8

text

#030608

muted

#787A7B

Preview Lab

Preview with #0A3140

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

Preview Lab → · Contrast checker → · Palette generator →