#18384C#18384C

#18384C is a dark, muted cyan. Relative luminance 0.035; OKLCH L 32.6% C 0.052 H 238.6°. Best body text is #FFFFFF at 12.29:1 contrast (WCAG AA passes).

Color values

HEX	#18384C
RGB	rgb(24, 56, 76)
HSL	hsl(203, 52%, 20%)
HSV	hsv(203, 68%, 30%)
CMYK	cmyk(68.4%, 26.3%, 0%, 70.2%)
CIE-LAB	lab(22.10, -4.57, -15.77)
CIE-LCH	lch(22.10, 16.42, 253.83°)
OKLab	oklab(32.64% -0.027 -0.0442)
OKLCH	oklch(32.64% 0.052 238.6)
XYZ	xyz(3.0949, 3.5440, 7.3570)
Luminance	0.0354 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18384C #4C2C18

analogous

#184C46 #18384C #181E4C

triadic

#18384C #4C1838 #384C18

tetradic

#18384C #46184C #4C2C18 #1E4C18

square

#18384C #46184C #4C2C18 #1E4C18

split-complementary

#18384C #4C181E #4C4618

monochromatic

#071117 #09161D #18384C #275A7B #357DA9

Accessibility & contrast

On white

12.29

#18384C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#18384C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18384C

12.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18384C	#FFFFFF	#000000	##FFFFFF
##18384C	1.00	12.29	1.71	12.29
#FFFFFF	12.29	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F384D

Deuteranopia (green-blind)

#28334C

Tritanopia (blue-blind)

#003D3F

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #18384c;
/* rgb */ color: rgb(24, 56, 76);
/* oklch */ color: oklch(32.6% 0.052 238.6);

Tailwind

colors: {
  custom: {
    50: '#5b6e7e',
    500: '#18384c',
    950: '#000000',
  },
}

SCSS

$custom: #18384c;
$custom-light: #5b6e7e;
$custom-dark: #000000;

JSON

{
  "hex": "#18384c",
  "rgb": {
    "r": 24,
    "g": 56,
    "b": 76
  },
  "hsl": {
    "h": 203.077,
    "s": 52,
    "l": 19.608
  },
  "oklch": {
    "l": 0.32639,
    "c": 0.05182,
    "h": 238.6
  },
  "luminance": 0.03544
}

Semantic roles & 50–950 ramp

primary

#18384C

secondary

#83583D

accent

#834CDB

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #18384C

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

Preview Lab → · Contrast checker → · Palette generator →