#1A5381#1A5381

#1A5381 is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 43.0% C 0.096 H 247.1°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX#1A5381
RGBrgb(26, 83, 129)
HSLhsl(207, 66%, 30%)
HSVhsv(207, 80%, 51%)
CMYKcmyk(79.8%, 35.7%, 0%, 49.4%)
CIE-LABlab(33.96, -1.09, -31.06)
CIE-LCHlch(33.96, 31.08, 268.00°)
OKLaboklab(42.95% -0.0373 -0.0883)
OKLCHoklch(42.95% 0.096 247.1)
XYZxyz(7.4802, 7.9902, 21.9127)
Luminance0.0799 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1A5381 #81481A
analogous
#1A817B #1A5381 #1A1F81
triadic
#1A5381 #811A53 #53811A
tetradic
#1A5381 #7B1A81 #81481A #1F811A
square
#1A5381 #7B1A81 #81481A #1F811A
split-complementary
#1A5381 #811A1F #817B1A
monochromatic
#05111B #10324E #1A5381 #2474B4 #3D93D8

Accessibility & contrast

On white

8.08
#1A5381 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.60
#1A5381 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A5381
8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1A5381#FFFFFF#000000##FFFFFF
##1A53811.008.082.608.08
#FFFFFF8.081.0021.001.00
#0000002.6021.001.0021.00
##FFFFFF8.081.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3E5583
Deuteranopia (green-blind)
#2F4C80
Tritanopia (blue-blind)
#005E64
Achromatopsia (no color)
#505050

Design tokens & code

CSS
--color: #1a5381;
/* rgb */ color: rgb(26, 83, 129);
/* oklch */ color: oklch(43.0% 0.096 247.1);
Tailwind
colors: {
  custom: {
    50: '#6783a6',
    500: '#1a5381',
    950: '#000000',
  },
}
SCSS
$custom: #1a5381;
$custom-light: #6783a6;
$custom-dark: #000000;
JSON
{
  "hex": "#1a5381",
  "rgb": {
    "r": 26,
    "g": 83,
    "b": 129
  },
  "hsl": {
    "h": 206.796,
    "s": 66.452,
    "l": 30.392
  },
  "oklch": {
    "l": 0.4295,
    "c": 0.09586,
    "h": 247.1
  },
  "luminance": 0.07991
}

Semantic roles & 50–950 ramp

primary
#1A5381
secondary
#B57542
accent
#8B3EE9
background
#F6F7FA
surface
#EBEEF4
border
#C6C9CE
text
#070A0F
muted
#7A7C7F

Preview Lab

Preview with #1A5381

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

Preview Lab → · Contrast checker → · Palette generator →

#1A5381 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva