#1B5A82#1B5A82

#1B5A82 is a dark, moderate cyan. Relative luminance 0.092; OKLCH L 44.8% C 0.090 H 241.3°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX#1B5A82
RGBrgb(27, 90, 130)
HSLhsl(203, 66%, 31%)
HSVhsv(203, 79%, 51%)
CMYKcmyk(79.2%, 30.8%, 0%, 49%)
CIE-LABlab(36.28, -5.00, -28.02)
CIE-LCHlch(36.28, 28.46, 259.88°)
OKLaboklab(44.81% -0.0434 -0.0793)
OKLCHoklch(44.81% 0.09 241.3)
XYZxyz(8.1358, 9.1561, 22.4533)
Luminance0.0916 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B5A82 #82431B
analogous
#1B8276 #1B5A82 #1B2682
triadic
#1B5A82 #821B5A #5A821B
tetradic
#1B5A82 #761B82 #82431B #26821B
square
#1B5A82 #761B82 #82431B #26821B
split-complementary
#1B5A82 #821B26 #82761B
monochromatic
#06141D #10374F #1B5A82 #267DB5 #409DD7

Accessibility & contrast

On white

7.42
#1B5A82 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.83
#1B5A82 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5A82
7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B5A82#FFFFFF#000000##FFFFFF
##1B5A821.007.422.837.42
#FFFFFF7.421.0021.001.00
#0000002.8321.001.0021.00
##FFFFFF7.421.0021.001.00

Color blindness preview

Protanopia (red-blind)
#475B84
Deuteranopia (green-blind)
#395181
Tritanopia (blue-blind)
#006468
Achromatopsia (no color)
#555555

Design tokens & code

CSS
--color: #1b5a82;
/* rgb */ color: rgb(27, 90, 130);
/* oklch */ color: oklch(44.8% 0.090 241.3);
Tailwind
colors: {
  custom: {
    50: '#6888a6',
    500: '#1b5a82',
    950: '#000000',
  },
}
SCSS
$custom: #1b5a82;
$custom-light: #6888a6;
$custom-dark: #000000;
JSON
{
  "hex": "#1b5a82",
  "rgb": {
    "r": 27,
    "g": 90,
    "b": 130
  },
  "hsl": {
    "h": 203.301,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.44807,
    "c": 0.09041,
    "h": 241.3
  },
  "luminance": 0.09157
}

Semantic roles & 50–950 ramp

primary
#1B5A82
secondary
#B67043
accent
#813FE9
background
#F6F8FA
surface
#EBEFF4
border
#C6CACE
text
#070B0F
muted
#7A7C7F

Preview Lab

Preview with #1B5A82

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

Preview Lab → · Contrast checker → · Palette generator →

#1B5A82 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva