#18596C#18596C

#18596C is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.3% C 0.070 H 221.7°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#18596C
RGB	rgb(24, 89, 108)
HSL	hsl(194, 64%, 26%)
HSV	hsv(194, 78%, 42%)
CMYK	cmyk(77.8%, 17.6%, 0%, 57.6%)
CIE-LAB	lab(34.84, -13.08, -16.67)
CIE-LCH	lch(34.84, 21.19, 231.89°)
OKLab	oklab(43.3% -0.0523 -0.0466)
OKLCH	oklch(43.3% 0.07 221.7)
XYZ	xyz(6.6547, 8.4209, 15.4591)
Luminance	0.0842 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18596C #6C2B18

analogous

#186C55 #18596C #182F6C

triadic

#18596C #6C1859 #596C18

tetradic

#18596C #55186C #6C2B18 #2F6C18

square

#18596C #55186C #6C2B18 #2F6C18

split-complementary

#18596C #6C182F #6C5518

monochromatic

#061519 #0D303A #18596C #23829E #2EACD0

Accessibility & contrast

On white

7.82

#18596C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#18596C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18596C

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18596C	#FFFFFF	#000000	##FFFFFF
##18596C	1.00	7.82	2.68	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E576D

Deuteranopia (green-blind)

#424E6C

Tritanopia (blue-blind)

#005F5F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #18596c;
/* rgb */ color: rgb(24, 89, 108);
/* oklch */ color: oklch(43.3% 0.070 221.7);

Tailwind

colors: {
  custom: {
    50: '#638896',
    500: '#18596c',
    950: '#000000',
  },
}

SCSS

$custom: #18596c;
$custom-light: #638896;
$custom-dark: #000000;

JSON

{
  "hex": "#18596c",
  "rgb": {
    "r": 24,
    "g": 89,
    "b": 108
  },
  "hsl": {
    "h": 193.571,
    "s": 63.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.43298,
    "c": 0.07005,
    "h": 221.7
  },
  "luminance": 0.08422
}

Semantic roles & 50–950 ramp

primary

#18596C

secondary

#A2553E

accent

#6741E7

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #18596C

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

Preview Lab → · Contrast checker → · Palette generator →