#18365A#18365A

#18365A is a dark, moderate cyan. Relative luminance 0.036; OKLCH L 33.0% C 0.073 H 254.4°. Best body text is #FFFFFF at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#18365A
RGB	rgb(24, 54, 90)
HSL	hsl(213, 58%, 22%)
HSV	hsv(213, 73%, 35%)
CMYK	cmyk(73.3%, 40%, 0%, 64.7%)
CIE-LAB	lab(22.20, 2.35, -24.90)
CIE-LCH	lch(22.20, 25.01, 275.38°)
OKLab	oklab(32.97% -0.0198 -0.0708)
OKLCH	oklch(32.97% 0.073 254.4)
XYZ	xyz(3.5406, 3.5703, 10.1734)
Luminance	0.0357 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18365A #5A3C18

analogous

#18575A #18365A #1B185A

triadic

#18365A #5A1836 #365A18

tetradic

#18365A #5A1857 #5A3C18 #185A1B

square

#18365A #5A1857 #5A3C18 #185A1B

split-complementary

#18365A #5A1B18 #575A18

monochromatic

#060E18 #0B192A #18365A #25538A #3270BB

Accessibility & contrast

On white

12.25

#18365A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#18365A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18365A

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18365A	#FFFFFF	#000000	##FFFFFF
##18365A	1.00	12.25	1.71	12.25
#FFFFFF	12.25	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26385B

Deuteranopia (green-blind)

#1C3259

Tritanopia (blue-blind)

#003E43

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #18365a;
/* rgb */ color: rgb(24, 54, 90);
/* oklch */ color: oklch(33.0% 0.073 254.4);

Tailwind

colors: {
  custom: {
    50: '#5e6c89',
    500: '#18365a',
    950: '#000000',
  },
}

SCSS

$custom: #18365a;
$custom-light: #5e6c89;
$custom-dark: #000000;

JSON

{
  "hex": "#18365a",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 90
  },
  "hsl": {
    "h": 212.727,
    "s": 57.895,
    "l": 22.353
  },
  "oklch": {
    "l": 0.32967,
    "c": 0.07349,
    "h": 254.4
  },
  "luminance": 0.03571
}

Semantic roles & 50–950 ramp

primary

#18365A

secondary

#916B3D

accent

#9B47E1

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05070B

muted

#797A7C

Preview Lab

Preview with #18365A

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

Preview Lab → · Contrast checker → · Palette generator →