#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
RGBrgb(10, 49, 67)
HSLhsl(199, 74%, 15%)
HSVhsv(199, 85%, 26%)
CMYKcmyk(85.1%, 26.9%, 0%, 73.7%)
CIE-LABlab(18.65, -6.10, -15.10)
CIE-LCHlch(18.65, 16.28, 248.00°)
OKLaboklab(29.6% -0.032 -0.0425)
OKLCHoklch(29.6% 0.053 233)
XYZxyz(2.2362, 2.6661, 5.7059)
Luminance0.0267 (WCAG relative)
Temperaturecool
Familycyan

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
##0A31431.0013.701.5313.70
#FFFFFF13.701.0021.001.00
#0000001.5321.001.0021.00
##FFFFFF13.701.0021.001.00

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 →

#0A3143 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva