#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
RGB	rgb(24, 82, 139)
HSL	hsl(210, 71%, 32%)
HSV	hsv(210, 83%, 55%)
CMYK	cmyk(82.7%, 41%, 0%, 45.5%)
CIE-LAB	lab(34.17, 3.33, -36.87)
CIE-LCH	lch(34.17, 37.02, 275.17°)
OKLab	oklab(43.29% -0.0346 -0.1054)
OKLCH	oklch(43.29% 0.111 251.8)
XYZ	xyz(8.0524, 8.0919, 25.5586)
Luminance	0.0809 (WCAG relative)
Temperature	cool
Family	cyan

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
##18528B	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

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 →