#1D5590#1D5590

#1D5590 is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.5% C 0.113 H 252.8°. Best body text is #FFFFFF at 7.62:1 contrast (WCAG AA passes).

Color values

HEX#1D5590
RGBrgb(29, 85, 144)
HSLhsl(211, 66%, 34%)
HSVhsv(211, 80%, 56%)
CMYKcmyk(79.9%, 41%, 0%, 43.5%)
CIE-LABlab(35.54, 3.94, -37.73)
CIE-LCHlch(35.54, 37.93, 275.95°)
OKLaboklab(44.49% -0.0333 -0.1078)
OKLCHoklch(44.49% 0.113 252.8)
XYZxyz(8.7873, 8.7708, 27.6100)
Luminance0.0877 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D5590 #90581D
analogous
#1D8F90 #1D5590 #1F1D90
triadic
#1D5590 #901D55 #55901D
tetradic
#1D5590 #901D8F #90581D #1D901F
square
#1D5590 #901D8F #90581D #1D901F
split-complementary
#1D5590 #901F1D #8F901D
monochromatic
#08192A #13375D #1D5590 #2773C3 #4C92DB

Accessibility & contrast

On white

7.62
#1D5590 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.75
#1D5590 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5590
7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D5590#FFFFFF#000000##FFFFFF
##1D55901.007.622.757.62
#FFFFFF7.621.0021.001.00
#0000002.7521.001.0021.00
##FFFFFF7.621.0021.001.00

Color blindness preview

Protanopia (red-blind)
#395992
Deuteranopia (green-blind)
#264F8F
Tritanopia (blue-blind)
#00636B
Achromatopsia (no color)
#545454

Design tokens & code

CSS
--color: #1d5590;
/* rgb */ color: rgb(29, 85, 144);
/* oklch */ color: oklch(44.5% 0.113 252.8);
Tailwind
colors: {
  custom: {
    50: '#6b84b1',
    500: '#1d5590',
    950: '#000000',
  },
}
SCSS
$custom: #1d5590;
$custom-light: #6b84b1;
$custom-dark: #000000;
JSON
{
  "hex": "#1d5590",
  "rgb": {
    "r": 29,
    "g": 85,
    "b": 144
  },
  "hsl": {
    "h": 210.783,
    "s": 66.474,
    "l": 33.922
  },
  "oklch": {
    "l": 0.44491,
    "c": 0.11283,
    "h": 252.8
  },
  "luminance": 0.08772
}

Semantic roles & 50–950 ramp

primary
#1D5590
secondary
#BD864B
accent
#963EE9
background
#F6F8FA
surface
#ECEFF5
border
#C7CACF
text
#080A10
muted
#7A7C7F

Preview Lab

Preview with #1D5590

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

Preview Lab → · Contrast checker → · Palette generator →

#1D5590 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva