#0A3143#0A3143

#0A3143 is a dark, muted cyan. Relative luminance 0.027; OKLCH L 29.6% C 0.053 H 233.0°. Best body text is #FFFFFF at 13.70:1 contrast (WCAG AA passes).

Color values

HEX	#0A3143
RGB	rgb(10, 49, 67)
HSL	hsl(199, 74%, 15%)
HSV	hsv(199, 85%, 26%)
CMYK	cmyk(85.1%, 26.9%, 0%, 73.7%)
CIE-LAB	lab(18.65, -6.10, -15.10)
CIE-LCH	lch(18.65, 16.28, 248.00°)
OKLab	oklab(29.6% -0.032 -0.0425)
OKLCH	oklch(29.6% 0.053 233)
XYZ	xyz(2.2362, 2.6661, 5.7059)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3143 #431C0A

analogous

#0A4338 #0A3143 #0A1543

triadic

#0A3143 #430A31 #31430A

tetradic

#0A3143 #380A43 #431C0A #15430A

square

#0A3143 #380A43 #431C0A #15430A

split-complementary

#0A3143 #430A15 #43380A

monochromatic

#04131B #04131B #0A3143 #125878 #1A7FAE

Accessibility & contrast

On white

13.70

#0A3143 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#0A3143 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3143

13.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3143	#FFFFFF	#000000	##FFFFFF
##0A3143	1.00	13.70	1.53	13.70
#FFFFFF	13.70	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283044

Deuteranopia (green-blind)

#202B43

Tritanopia (blue-blind)

#003637

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #0a3143;
/* rgb */ color: rgb(10, 49, 67);
/* oklch */ color: oklch(29.6% 0.053 233.0);

Tailwind

colors: {
  custom: {
    50: '#536977',
    500: '#0a3143',
    950: '#000000',
  },
}

SCSS

$custom: #0a3143;
$custom-light: #536977;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3143",
  "rgb": {
    "r": 10,
    "g": 49,
    "b": 67
  },
  "hsl": {
    "h": 198.947,
    "s": 74.026,
    "l": 15.098
  },
  "oklch": {
    "l": 0.29603,
    "c": 0.0532,
    "h": 233
  },
  "luminance": 0.02666
}

Semantic roles & 50–950 ramp

primary

#0A3143

secondary

#804429

accent

#7237F1

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030608

muted

#787A7B

Preview Lab

Preview with #0A3143

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

Preview Lab → · Contrast checker → · Palette generator →