#18528B#18528B

#18528B is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.3% C 0.111 H 251.8°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX#18528B
RGBrgb(24, 82, 139)
HSLhsl(210, 71%, 32%)
HSVhsv(210, 83%, 55%)
CMYKcmyk(82.7%, 41%, 0%, 45.5%)
CIE-LABlab(34.17, 3.33, -36.87)
CIE-LCHlch(34.17, 37.02, 275.17°)
OKLaboklab(43.29% -0.0346 -0.1054)
OKLCHoklch(43.29% 0.111 251.8)
XYZxyz(8.0524, 8.0919, 25.5586)
Luminance0.0809 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#18528B #8B5118
analogous
#188B8B #18528B #18198B
triadic
#18528B #8B1852 #528B18
tetradic
#18528B #8B188B #8B5118 #198B18
square
#18528B #8B188B #8B5118 #198B18
split-complementary
#18528B #8B1819 #8B8B18
monochromatic
#061423 #0F3357 #18528B #2171BF #3F8FDE

Accessibility & contrast

On white

8.02
#18528B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.62
#18528B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18528B
8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##18528B#FFFFFF#000000##FFFFFF
##18528B1.008.022.628.02
#FFFFFF8.021.0021.001.00
#0000002.6221.001.0021.00
##FFFFFF8.021.0021.001.00

Color blindness preview

Protanopia (red-blind)
#36568D
Deuteranopia (green-blind)
#234C8A
Tritanopia (blue-blind)
#006067
Achromatopsia (no color)
#505050

Design tokens & code

CSS
--color: #18528b;
/* rgb */ color: rgb(24, 82, 139);
/* oklch */ color: oklch(43.3% 0.111 251.8);
Tailwind
colors: {
  custom: {
    50: '#6982ad',
    500: '#18528b',
    950: '#000000',
  },
}
SCSS
$custom: #18528b;
$custom-light: #6982ad;
$custom-dark: #000000;
JSON
{
  "hex": "#18528b",
  "rgb": {
    "r": 24,
    "g": 82,
    "b": 139
  },
  "hsl": {
    "h": 209.739,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.43289,
    "c": 0.11092,
    "h": 251.8
  },
  "luminance": 0.08093
}

Semantic roles & 50–950 ramp

primary
#18528B
secondary
#BE7F40
accent
#933AED
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070A10
muted
#7A7C7F

Preview Lab

Preview with #18528B

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

Preview Lab → · Contrast checker → · Palette generator →

#18528B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva