#18364B#18364B

#18364B is a dark, muted cyan. Relative luminance 0.033; OKLCH L 32.0% C 0.052 H 241.4°. Best body text is #FFFFFF at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#18364B
RGB	rgb(24, 54, 75)
HSL	hsl(205, 52%, 19%)
HSV	hsv(205, 68%, 29%)
CMYK	cmyk(68%, 28%, 0%, 70.6%)
CIE-LAB	lab(21.36, -3.62, -16.25)
CIE-LCH	lch(21.36, 16.65, 257.44°)
OKLab	oklab(32.03% -0.0248 -0.0457)
OKLCH	oklch(32.03% 0.052 241.4)
XYZ	xyz(2.9654, 3.3402, 7.1437)
Luminance	0.0334 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18364B #4B2D18

analogous

#184B47 #18364B #181D4B

triadic

#18364B #4B1836 #364B18

tetradic

#18364B #47184B #4B2D18 #1D4B18

square

#18364B #47184B #4B2D18 #1D4B18

split-complementary

#18364B #4B181D #4B4718

monochromatic

#071117 #09151D #18364B #275779 #3679A8

Accessibility & contrast

On white

12.59

#18364B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#18364B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18364B

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18364B	#FFFFFF	#000000	##FFFFFF
##18364B	1.00	12.59	1.67	12.59
#FFFFFF	12.59	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D364C

Deuteranopia (green-blind)

#26314B

Tritanopia (blue-blind)

#003B3D

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #18364b;
/* rgb */ color: rgb(24, 54, 75);
/* oklch */ color: oklch(32.0% 0.052 241.4);

Tailwind

colors: {
  custom: {
    50: '#5b6c7d',
    500: '#18364b',
    950: '#000000',
  },
}

SCSS

$custom: #18364b;
$custom-light: #5b6c7d;
$custom-dark: #000000;

JSON

{
  "hex": "#18364b",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 75
  },
  "hsl": {
    "h": 204.706,
    "s": 51.515,
    "l": 19.412
  },
  "oklch": {
    "l": 0.32033,
    "c": 0.05198,
    "h": 241.4
  },
  "luminance": 0.03341
}

Semantic roles & 50–950 ramp

primary

#18364B

secondary

#82593D

accent

#874DDB

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #18364B

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

Preview Lab → · Contrast checker → · Palette generator →