#18596D#18596D

#18596D is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.3% C 0.071 H 222.9°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#18596D
RGB	rgb(24, 89, 109)
HSL	hsl(194, 64%, 26%)
HSV	hsv(194, 78%, 43%)
CMYK	cmyk(78%, 18.3%, 0%, 57.3%)
CIE-LAB	lab(34.89, -12.71, -17.23)
CIE-LCH	lch(34.89, 21.41, 233.58°)
OKLab	oklab(43.35% -0.0518 -0.0482)
OKLCH	oklch(43.35% 0.071 222.9)
XYZ	xyz(6.7082, 8.4423, 15.7410)
Luminance	0.0844 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18596D #6D2C18

analogous

#186D56 #18596D #182E6D

triadic

#18596D #6D1859 #596D18

tetradic

#18596D #56186D #6D2C18 #2E6D18

square

#18596D #56186D #6D2C18 #2E6D18

split-complementary

#18596D #6D182E #6D5618

monochromatic

#061419 #0D303B #18596D #23829F #2EABD1

Accessibility & contrast

On white

7.81

#18596D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#18596D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18596D

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18596D	#FFFFFF	#000000	##FFFFFF
##18596D	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E576E

Deuteranopia (green-blind)

#424E6D

Tritanopia (blue-blind)

#005F5F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #18596d;
/* rgb */ color: rgb(24, 89, 109);
/* oklch */ color: oklch(43.3% 0.071 222.9);

Tailwind

colors: {
  custom: {
    50: '#638897',
    500: '#18596d',
    950: '#000000',
  },
}

SCSS

$custom: #18596d;
$custom-light: #638897;
$custom-dark: #000000;

JSON

{
  "hex": "#18596d",
  "rgb": {
    "r": 24,
    "g": 89,
    "b": 109
  },
  "hsl": {
    "h": 194.118,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.43346,
    "c": 0.07081,
    "h": 222.9
  },
  "luminance": 0.08443
}

Semantic roles & 50–950 ramp

primary

#18596D

secondary

#A3563E

accent

#6841E7

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #18596D

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

Preview Lab → · Contrast checker → · Palette generator →