#18364D#18364D

#18364D is a dark, muted cyan. Relative luminance 0.034; OKLCH L 32.1% C 0.055 H 243.9°. Best body text is #FFFFFF at 12.55:1 contrast (WCAG AA passes).

Color values

HEX	#18364D
RGB	rgb(24, 54, 77)
HSL	hsl(206, 52%, 20%)
HSV	hsv(206, 69%, 30%)
CMYK	cmyk(68.8%, 29.9%, 0%, 69.8%)
CIE-LAB	lab(21.46, -2.85, -17.43)
CIE-LCH	lch(21.46, 17.66, 260.72°)
OKLab	oklab(32.15% -0.0241 -0.0491)
OKLCH	oklch(32.15% 0.055 243.9)
XYZ	xyz(3.0349, 3.3681, 7.5099)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18364D #4D2F18

analogous

#184D4A #18364D #181B4D

triadic

#18364D #4D1836 #364D18

tetradic

#18364D #4A184D #4D2F18 #1B4D18

square

#18364D #4A184D #4D2F18 #1B4D18

split-complementary

#18364D #4D181B #4D4A18

monochromatic

#071017 #09151E #18364D #27577C #3577AA

Accessibility & contrast

On white

12.55

#18364D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#18364D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18364D

12.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18364D	#FFFFFF	#000000	##FFFFFF
##18364D	1.00	12.55	1.67	12.55
#FFFFFF	12.55	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C364E

Deuteranopia (green-blind)

#25314D

Tritanopia (blue-blind)

#003C3E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #18364d;
/* rgb */ color: rgb(24, 54, 77);
/* oklch */ color: oklch(32.1% 0.055 243.9);

Tailwind

colors: {
  custom: {
    50: '#5b6c7f',
    500: '#18364d',
    950: '#000000',
  },
}

SCSS

$custom: #18364d;
$custom-light: #5b6c7f;
$custom-dark: #000000;

JSON

{
  "hex": "#18364d",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 77
  },
  "hsl": {
    "h": 206.038,
    "s": 52.475,
    "l": 19.804
  },
  "oklch": {
    "l": 0.32148,
    "c": 0.05464,
    "h": 243.9
  },
  "luminance": 0.03368
}

Semantic roles & 50–950 ramp

primary

#18364D

secondary

#845C3D

accent

#8A4CDC

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #18364D

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

Preview Lab → · Contrast checker → · Palette generator →