#1D5383#1D5383

#1D5383 is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.2% C 0.097 H 249.0°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX#1D5383
RGBrgb(29, 83, 131)
HSLhsl(208, 64%, 31%)
HSVhsv(208, 78%, 51%)
CMYKcmyk(77.9%, 36.6%, 0%, 48.6%)
CIE-LABlab(34.16, 0.09, -31.97)
CIE-LCHlch(34.16, 31.97, 270.17°)
OKLaboklab(43.17% -0.0349 -0.091)
OKLCHoklch(43.17% 0.097 249)
XYZxyz(7.6951, 8.0855, 22.6234)
Luminance0.0809 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D5383 #834D1D
analogous
#1D8380 #1D5383 #1D2083
triadic
#1D5383 #831D53 #53831D
tetradic
#1D5383 #801D83 #834D1D #20831D
square
#1D5383 #801D83 #834D1D #20831D
split-complementary
#1D5383 #831D20 #83801D
monochromatic
#07141F #123351 #1D5383 #2873B5 #4591D6

Accessibility & contrast

On white

8.02
#1D5383 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.62
#1D5383 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5383
8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D5383#FFFFFF#000000##FFFFFF
##1D53831.008.022.628.02
#FFFFFF8.021.0021.001.00
#0000002.6221.001.0021.00
##FFFFFF8.021.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3D5585
Deuteranopia (green-blind)
#2E4C82
Tritanopia (blue-blind)
#005E65
Achromatopsia (no color)
#505050

Design tokens & code

CSS
--color: #1d5383;
/* rgb */ color: rgb(29, 83, 131);
/* oklch */ color: oklch(43.2% 0.097 249.0);
Tailwind
colors: {
  custom: {
    50: '#6983a7',
    500: '#1d5383',
    950: '#000000',
  },
}
SCSS
$custom: #1d5383;
$custom-light: #6983a7;
$custom-dark: #000000;
JSON
{
  "hex": "#1d5383",
  "rgb": {
    "r": 29,
    "g": 83,
    "b": 131
  },
  "hsl": {
    "h": 208.235,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.43166,
    "c": 0.09744,
    "h": 249
  },
  "luminance": 0.08086
}

Semantic roles & 50–950 ramp

primary
#1D5383
secondary
#B67B46
accent
#8F41E7
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070A0F
muted
#7A7C7F

Preview Lab

Preview with #1D5383

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

Preview Lab → · Contrast checker → · Palette generator →

#1D5383 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva