#1D588A#1D588A

#1D588A is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.8% C 0.102 H 248.2°. Best body text is #FFFFFF at 7.46:1 contrast (WCAG AA passes).

Color values

HEX#1D588A
RGBrgb(29, 88, 138)
HSLhsl(208, 65%, 33%)
HSVhsv(208, 79%, 54%)
CMYKcmyk(79%, 36.2%, 0%, 45.9%)
CIE-LABlab(36.13, -0.37, -33.14)
CIE-LCHlch(36.13, 33.15, 269.35°)
OKLaboklab(44.84% -0.0378 -0.0943)
OKLCHoklch(44.84% 0.102 248.2)
XYZxyz(8.5821, 9.0746, 25.3391)
Luminance0.0908 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D588A #8A4F1D
analogous
#1D8A85 #1D588A #1D228A
triadic
#1D588A #8A1D58 #588A1D
tetradic
#1D588A #851D8A #8A4F1D #228A1D
square
#1D588A #851D8A #8A4F1D #228A1D
split-complementary
#1D588A #8A1D22 #8A851D
monochromatic
#081825 #123857 #1D588A #2878BD #4997D9

Accessibility & contrast

On white

7.46
#1D588A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.82
#1D588A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D588A
7.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D588A#FFFFFF#000000##FFFFFF
##1D588A1.007.462.827.46
#FFFFFF7.461.0021.001.00
#0000002.8221.001.0021.00
##FFFFFF7.461.0021.001.00

Color blindness preview

Protanopia (red-blind)
#415A8C
Deuteranopia (green-blind)
#315089
Tritanopia (blue-blind)
#00646A
Achromatopsia (no color)
#555555

Design tokens & code

CSS
--color: #1d588a;
/* rgb */ color: rgb(29, 88, 138);
/* oklch */ color: oklch(44.8% 0.102 248.2);
Tailwind
colors: {
  custom: {
    50: '#6a86ac',
    500: '#1d588a',
    950: '#000000',
  },
}
SCSS
$custom: #1d588a;
$custom-light: #6a86ac;
$custom-dark: #000000;
JSON
{
  "hex": "#1d588a",
  "rgb": {
    "r": 29,
    "g": 88,
    "b": 138
  },
  "hsl": {
    "h": 207.523,
    "s": 65.269,
    "l": 32.745
  },
  "oklch": {
    "l": 0.44839,
    "c": 0.10159,
    "h": 248.2
  },
  "luminance": 0.09076
}

Semantic roles & 50–950 ramp

primary
#1D588A
secondary
#BB7D48
accent
#8D40E8
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070B10
muted
#7A7C7F

Preview Lab

Preview with #1D588A

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

Preview Lab → · Contrast checker → · Palette generator →

#1D588A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva