#18355A#18355A

#18355A is a dark, moderate cyan. Relative luminance 0.035; OKLCH L 32.7% C 0.075 H 255.6°. Best body text is #FFFFFF at 12.38:1 contrast (WCAG AA passes).

Color values

HEX	#18355A
RGB	rgb(24, 53, 90)
HSL	hsl(214, 58%, 22%)
HSV	hsv(214, 73%, 35%)
CMYK	cmyk(73.3%, 41.1%, 0%, 64.7%)
CIE-LAB	lab(21.87, 3.05, -25.42)
CIE-LCH	lch(21.87, 25.61, 276.84°)
OKLab	oklab(32.71% -0.0186 -0.0723)
OKLCH	oklch(32.71% 0.075 255.6)
XYZ	xyz(3.4946, 3.4782, 10.1581)
Luminance	0.0348 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18355A #5A3D18

analogous

#18565A #18355A #1C185A

triadic

#18355A #5A1835 #355A18

tetradic

#18355A #5A1856 #5A3D18 #185A1C

square

#18355A #5A1856 #5A3D18 #185A1C

split-complementary

#18355A #5A1C18 #565A18

monochromatic

#060E18 #0B192A #18355A #25518A #326EBB

Accessibility & contrast

On white

12.38

#18355A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#18355A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18355A

12.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18355A	#FFFFFF	#000000	##FFFFFF
##18355A	1.00	12.38	1.70	12.38
#FFFFFF	12.38	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24385B

Deuteranopia (green-blind)

#1B3259

Tritanopia (blue-blind)

#003E43

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #18355a;
/* rgb */ color: rgb(24, 53, 90);
/* oklch */ color: oklch(32.7% 0.075 255.6);

Tailwind

colors: {
  custom: {
    50: '#5e6b89',
    500: '#18355a',
    950: '#000000',
  },
}

SCSS

$custom: #18355a;
$custom-light: #5e6b89;
$custom-dark: #000000;

JSON

{
  "hex": "#18355a",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 90
  },
  "hsl": {
    "h": 213.636,
    "s": 57.895,
    "l": 22.353
  },
  "oklch": {
    "l": 0.32709,
    "c": 0.0747,
    "h": 255.6
  },
  "luminance": 0.03479
}

Semantic roles & 50–950 ramp

primary

#18355A

secondary

#916C3D

accent

#9D47E1

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060B

muted

#797A7C

Preview Lab

Preview with #18355A

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

Preview Lab → · Contrast checker → · Palette generator →