#18556C#18556C

#18556C is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.2% C 0.071 H 227.7°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#18556C
RGB	rgb(24, 85, 108)
HSL	hsl(196, 64%, 26%)
HSV	hsv(196, 78%, 42%)
CMYK	cmyk(77.8%, 21.3%, 0%, 57.6%)
CIE-LAB	lab(33.51, -10.71, -18.74)
CIE-LCH	lch(33.51, 21.58, 240.26°)
OKLab	oklab(42.23% -0.0479 -0.0526)
OKLCH	oklch(42.23% 0.071 227.7)
XYZ	xyz(6.3309, 7.7732, 15.3512)
Luminance	0.0777 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18556C #6C2F18

analogous

#186C59 #18556C #182B6C

triadic

#18556C #6C1855 #556C18

tetradic

#18556C #59186C #6C2F18 #2B6C18

square

#18556C #59186C #6C2F18 #2B6C18

split-complementary

#18556C #6C182B #6C5918

monochromatic

#061419 #0D2E3A #18556C #237C9E #2EA4D0

Accessibility & contrast

On white

8.22

#18556C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#18556C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18556C

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18556C	#FFFFFF	#000000	##FFFFFF
##18556C	1.00	8.22	2.55	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49536D

Deuteranopia (green-blind)

#3D4B6C

Tritanopia (blue-blind)

#005C5D

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #18556c;
/* rgb */ color: rgb(24, 85, 108);
/* oklch */ color: oklch(42.2% 0.071 227.7);

Tailwind

colors: {
  custom: {
    50: '#638596',
    500: '#18556c',
    950: '#000000',
  },
}

SCSS

$custom: #18556c;
$custom-light: #638596;
$custom-dark: #000000;

JSON

{
  "hex": "#18556c",
  "rgb": {
    "r": 24,
    "g": 85,
    "b": 108
  },
  "hsl": {
    "h": 196.429,
    "s": 63.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.42225,
    "c": 0.07112,
    "h": 227.7
  },
  "luminance": 0.07774
}

Semantic roles & 50–950 ramp

primary

#18556C

secondary

#A2593E

accent

#6E41E7

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #18556C

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

Preview Lab → · Contrast checker → · Palette generator →