#1D5584#1D5584

#1D5584 is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.7% C 0.097 H 247.8°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX#1D5584
RGBrgb(29, 85, 132)
HSLhsl(207, 64%, 32%)
HSVhsv(207, 78%, 52%)
CMYKcmyk(78%, 35.6%, 0%, 48.2%)
CIE-LABlab(34.85, -0.80, -31.50)
CIE-LCHlch(34.85, 31.51, 268.54°)
OKLaboklab(43.73% -0.0366 -0.0895)
OKLCHoklch(43.73% 0.097 247.8)
XYZxyz(7.9185, 8.4232, 23.0338)
Luminance0.0842 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D5584 #844C1D
analogous
#1D8480 #1D5584 #1D2184
triadic
#1D5584 #841D55 #55841D
tetradic
#1D5584 #801D84 #844C1D #21841D
square
#1D5584 #801D84 #844C1D #21841D
split-complementary
#1D5584 #841D21 #84801D
monochromatic
#071420 #123552 #1D5584 #2875B6 #4594D6

Accessibility & contrast

On white

7.82
#1D5584 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.68
#1D5584 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5584
7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D5584#FFFFFF#000000##FFFFFF
##1D55841.007.822.687.82
#FFFFFF7.821.0021.001.00
#0000002.6821.001.0021.00
##FFFFFF7.821.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3F5786
Deuteranopia (green-blind)
#304E83
Tritanopia (blue-blind)
#006066
Achromatopsia (no color)
#525252

Design tokens & code

CSS
--color: #1d5584;
/* rgb */ color: rgb(29, 85, 132);
/* oklch */ color: oklch(43.7% 0.097 247.8);
Tailwind
colors: {
  custom: {
    50: '#6984a8',
    500: '#1d5584',
    950: '#000000',
  },
}
SCSS
$custom: #1d5584;
$custom-light: #6984a8;
$custom-dark: #000000;
JSON
{
  "hex": "#1d5584",
  "rgb": {
    "r": 29,
    "g": 85,
    "b": 132
  },
  "hsl": {
    "h": 207.379,
    "s": 63.975,
    "l": 31.569
  },
  "oklch": {
    "l": 0.43726,
    "c": 0.09674,
    "h": 247.8
  },
  "luminance": 0.08424
}

Semantic roles & 50–950 ramp

primary
#1D5584
secondary
#B77946
accent
#8D41E7
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070A0F
muted
#7A7C7F

Preview Lab

Preview with #1D5584

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

Preview Lab → · Contrast checker → · Palette generator →

#1D5584 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva