#18566D#18566D

#18566D is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 42.5% C 0.072 H 227.3°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#18566D
RGB	rgb(24, 86, 109)
HSL	hsl(196, 64%, 26%)
HSV	hsv(196, 78%, 43%)
CMYK	cmyk(78%, 21.1%, 0%, 57.3%)
CIE-LAB	lab(33.88, -10.93, -18.78)
CIE-LCH	lch(33.88, 21.73, 239.79°)
OKLab	oklab(42.54% -0.0486 -0.0527)
OKLCH	oklch(42.54% 0.072 227.3)
XYZ	xyz(6.4637, 7.9531, 15.6595)
Luminance	0.0795 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18566D #6D2F18

analogous

#186D59 #18566D #182B6D

triadic

#18566D #6D1856 #566D18

tetradic

#18566D #59186D #6D2F18 #2B6D18

square

#18566D #59186D #6D2F18 #2B6D18

split-complementary

#18566D #6D182B #6D5918

monochromatic

#061419 #0D2E3B #18566D #237E9F #2EA5D1

Accessibility & contrast

On white

8.11

#18566D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#18566D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18566D

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18566D	#FFFFFF	#000000	##FFFFFF
##18566D	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A546E

Deuteranopia (green-blind)

#3E4C6D

Tritanopia (blue-blind)

#005D5E

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #18566d;
/* rgb */ color: rgb(24, 86, 109);
/* oklch */ color: oklch(42.5% 0.072 227.3);

Tailwind

colors: {
  custom: {
    50: '#638597',
    500: '#18566d',
    950: '#000000',
  },
}

SCSS

$custom: #18566d;
$custom-light: #638597;
$custom-dark: #000000;

JSON

{
  "hex": "#18566d",
  "rgb": {
    "r": 24,
    "g": 86,
    "b": 109
  },
  "hsl": {
    "h": 196.235,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.42543,
    "c": 0.07165,
    "h": 227.3
  },
  "luminance": 0.07954
}

Semantic roles & 50–950 ramp

primary

#18566D

secondary

#A3593E

accent

#6E41E7

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #18566D

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

Preview Lab → · Contrast checker → · Palette generator →