#18527B#18527B

#18527B is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.3% C 0.090 H 244.1°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX#18527B
RGBrgb(24, 82, 123)
HSLhsl(205, 67%, 29%)
HSVhsv(205, 80%, 48%)
CMYKcmyk(80.5%, 33.3%, 0%, 51.8%)
CIE-LABlab(33.26, -3.07, -28.47)
CIE-LCHlch(33.26, 28.63, 263.85°)
OKLaboklab(42.27% -0.0392 -0.0808)
OKLCHoklch(42.27% 0.09 244.1)
XYZxyz(6.9677, 7.6580, 19.8460)
Luminance0.0766 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#18527B #7B4118
analogous
#187B73 #18527B #18217B
triadic
#18527B #7B1852 #527B18
tetradic
#18527B #73187B #7B4118 #217B18
square
#18527B #73187B #7B4118 #217B18
split-complementary
#18527B #7B1821 #7B7318
monochromatic
#05111A #0E3048 #18527B #2274AE #3695D8

Accessibility & contrast

On white

8.29
#18527B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.53
#18527B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18527B
8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##18527B#FFFFFF#000000##FFFFFF
##18527B1.008.292.538.29
#FFFFFF8.291.0021.001.00
#0000002.5321.001.0021.00
##FFFFFF8.291.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3F537D
Deuteranopia (green-blind)
#314A7A
Tritanopia (blue-blind)
#005C61
Achromatopsia (no color)
#4E4E4E

Design tokens & code

CSS
--color: #18527b;
/* rgb */ color: rgb(24, 82, 123);
/* oklch */ color: oklch(42.3% 0.090 244.1);
Tailwind
colors: {
  custom: {
    50: '#6582a1',
    500: '#18527b',
    950: '#000000',
  },
}
SCSS
$custom: #18527b;
$custom-light: #6582a1;
$custom-dark: #000000;
JSON
{
  "hex": "#18527b",
  "rgb": {
    "r": 24,
    "g": 82,
    "b": 123
  },
  "hsl": {
    "h": 204.848,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.42274,
    "c": 0.08979,
    "h": 244.1
  },
  "luminance": 0.07659
}

Semantic roles & 50–950 ramp

primary
#18527B
secondary
#B06E3F
accent
#853EEA
background
#F6F7F9
surface
#EBEEF2
border
#C6C9CC
text
#060A0F
muted
#7A7C7E

Preview Lab

Preview with #18527B

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

Preview Lab → · Contrast checker → · Palette generator →

#18527B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva