#1B528A#1B528A

#1B528A is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.3% C 0.109 H 252.2°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX#1B528A
RGBrgb(27, 82, 138)
HSLhsl(210, 67%, 32%)
HSVhsv(210, 80%, 54%)
CMYKcmyk(80.4%, 40.6%, 0%, 45.9%)
CIE-LABlab(34.19, 3.27, -36.22)
CIE-LCHlch(34.19, 36.37, 275.16°)
OKLaboklab(43.31% -0.0332 -0.1034)
OKLCHoklch(43.31% 0.109 252.2)
XYZxyz(8.0550, 8.1016, 25.1791)
Luminance0.0810 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B528A #8A531B
analogous
#1B8A8A #1B528A #1B1B8A
triadic
#1B528A #8A1B52 #528A1B
tetradic
#1B528A #8A1B8A #8A531B #1B8A1B
square
#1B528A #8A1B8A #8A531B #1B8A1B
split-complementary
#1B528A #8A1B1B #8A8A1B
monochromatic
#071524 #113457 #1B528A #2570BD #458FDB

Accessibility & contrast

On white

8.01
#1B528A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.62
#1B528A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B528A
8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B528A#FFFFFF#000000##FFFFFF
##1B528A1.008.012.628.01
#FFFFFF8.011.0021.001.00
#0000002.6221.001.0021.00
##FFFFFF8.011.0021.001.00

Color blindness preview

Protanopia (red-blind)
#37568C
Deuteranopia (green-blind)
#254C89
Tritanopia (blue-blind)
#005F67
Achromatopsia (no color)
#505050

Design tokens & code

CSS
--color: #1b528a;
/* rgb */ color: rgb(27, 82, 138);
/* oklch */ color: oklch(43.3% 0.109 252.2);
Tailwind
colors: {
  custom: {
    50: '#6a82ac',
    500: '#1b528a',
    950: '#000000',
  },
}
SCSS
$custom: #1b528a;
$custom-light: #6a82ac;
$custom-dark: #000000;
JSON
{
  "hex": "#1b528a",
  "rgb": {
    "r": 27,
    "g": 82,
    "b": 138
  },
  "hsl": {
    "h": 210.27,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.43308,
    "c": 0.10865,
    "h": 252.2
  },
  "luminance": 0.08103
}

Semantic roles & 50–950 ramp

primary
#1B528A
secondary
#BC8145
accent
#953EEA
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070A10
muted
#7A7C7F

Preview Lab

Preview with #1B528A

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

Preview Lab → · Contrast checker → · Palette generator →

#1B528A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva