#18384B#18384B

#18384B is a dark, muted cyan. Relative luminance 0.035; OKLCH L 32.6% C 0.051 H 237.2°. Best body text is #FFFFFF at 12.31:1 contrast (WCAG AA passes).

Color values

HEX	#18384B
RGB	rgb(24, 56, 75)
HSL	hsl(202, 52%, 19%)
HSV	hsv(202, 68%, 29%)
CMYK	cmyk(68%, 25.3%, 0%, 70.6%)
CIE-LAB	lab(22.05, -4.95, -15.18)
CIE-LCH	lch(22.05, 15.96, 251.92°)
OKLab	oklab(32.58% -0.0274 -0.0425)
OKLCH	oklch(32.58% 0.051 237.2)
XYZ	xyz(3.0604, 3.5302, 7.1754)
Luminance	0.0353 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18384B #4B2B18

analogous

#184B45 #18384B #181F4B

triadic

#18384B #4B1838 #384B18

tetradic

#18384B #45184B #4B2B18 #1F4B18

square

#18384B #45184B #4B2B18 #1F4B18

split-complementary

#18384B #4B181F #4B4518

monochromatic

#071117 #09151D #18384B #275B79 #367DA8

Accessibility & contrast

On white

12.31

#18384B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#18384B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18384B

12.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18384B	#FFFFFF	#000000	##FFFFFF
##18384B	1.00	12.31	1.71	12.31
#FFFFFF	12.31	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F384C

Deuteranopia (green-blind)

#28324B

Tritanopia (blue-blind)

#003D3E

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #18384b;
/* rgb */ color: rgb(24, 56, 75);
/* oklch */ color: oklch(32.6% 0.051 237.2);

Tailwind

colors: {
  custom: {
    50: '#5b6e7d',
    500: '#18384b',
    950: '#000000',
  },
}

SCSS

$custom: #18384b;
$custom-light: #5b6e7d;
$custom-dark: #000000;

JSON

{
  "hex": "#18384b",
  "rgb": {
    "r": 24,
    "g": 56,
    "b": 75
  },
  "hsl": {
    "h": 202.353,
    "s": 51.515,
    "l": 19.412
  },
  "oklch": {
    "l": 0.32584,
    "c": 0.05059,
    "h": 237.2
  },
  "luminance": 0.03531
}

Semantic roles & 50–950 ramp

primary

#18384B

secondary

#82573D

accent

#824DDB

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #18384B

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

Preview Lab → · Contrast checker → · Palette generator →