#1C5789#1C5789

#1C5789 is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.5% C 0.102 H 248.2°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX#1C5789
RGBrgb(28, 87, 137)
HSLhsl(208, 66%, 32%)
HSVhsv(208, 80%, 54%)
CMYKcmyk(79.6%, 36.5%, 0%, 46.3%)
CIE-LABlab(35.73, -0.25, -33.17)
CIE-LCHlch(35.73, 33.17, 269.57°)
OKLaboklab(44.5% -0.0377 -0.0944)
OKLCHoklch(44.5% 0.102 248.2)
XYZxyz(8.4007, 8.8684, 24.9311)
Luminance0.0887 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1C5789 #894E1C
analogous
#1C8985 #1C5789 #1C2089
triadic
#1C5789 #891C57 #57891C
tetradic
#1C5789 #851C89 #894E1C #20891C
square
#1C5789 #851C89 #894E1C #20891C
split-complementary
#1C5789 #891C20 #89851C
monochromatic
#071623 #123756 #1C5789 #2677BC #4696D9

Accessibility & contrast

On white

7.57
#1C5789 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.77
#1C5789 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C5789
7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1C5789#FFFFFF#000000##FFFFFF
##1C57891.007.572.777.57
#FFFFFF7.571.0021.001.00
#0000002.7721.001.0021.00
##FFFFFF7.571.0021.001.00

Color blindness preview

Protanopia (red-blind)
#405A8B
Deuteranopia (green-blind)
#305088
Tritanopia (blue-blind)
#006369
Achromatopsia (no color)
#545454

Design tokens & code

CSS
--color: #1c5789;
/* rgb */ color: rgb(28, 87, 137);
/* oklch */ color: oklch(44.5% 0.102 248.2);
Tailwind
colors: {
  custom: {
    50: '#6a86ac',
    500: '#1c5789',
    950: '#000000',
  },
}
SCSS
$custom: #1c5789;
$custom-light: #6a86ac;
$custom-dark: #000000;
JSON
{
  "hex": "#1c5789",
  "rgb": {
    "r": 28,
    "g": 87,
    "b": 137
  },
  "hsl": {
    "h": 207.523,
    "s": 66.061,
    "l": 32.353
  },
  "oklch": {
    "l": 0.44501,
    "c": 0.10163,
    "h": 248.2
  },
  "luminance": 0.08869
}

Semantic roles & 50–950 ramp

primary
#1C5789
secondary
#BB7C46
accent
#8D3FE9
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070B10
muted
#7A7C7F

Preview Lab

Preview with #1C5789

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

Preview Lab → · Contrast checker → · Palette generator →

#1C5789 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva