#18374F#18374F

#18374F is a dark, muted cyan. Relative luminance 0.035; OKLCH L 32.5% C 0.057 H 244.2°. Best body text is #FFFFFF at 12.37:1 contrast (WCAG AA passes).

Color values

HEX	#18374F
RGB	rgb(24, 55, 79)
HSL	hsl(206, 53%, 20%)
HSV	hsv(206, 70%, 31%)
CMYK	cmyk(69.6%, 30.4%, 0%, 69%)
CIE-LAB	lab(21.91, -2.74, -18.06)
CIE-LCH	lch(21.91, 18.27, 261.37°)
OKLab	oklab(32.54% -0.0246 -0.0509)
OKLCH	oklch(32.54% 0.057 244.2)
XYZ	xyz(3.1536, 3.4908, 7.9032)
Luminance	0.0349 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18374F #4F3018

analogous

#184F4B #18374F #181B4F

triadic

#18374F #4F1837 #374F18

tetradic

#18374F #4B184F #4F3018 #1B4F18

square

#18374F #4B184F #4F3018 #1B4F18

split-complementary

#18374F #4F181B #4F4B18

monochromatic

#071017 #0A1620 #18374F #26587E #3578AD

Accessibility & contrast

On white

12.37

#18374F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#18374F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18374F

12.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18374F	#FFFFFF	#000000	##FFFFFF
##18374F	1.00	12.37	1.70	12.37
#FFFFFF	12.37	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3750

Deuteranopia (green-blind)

#25324F

Tritanopia (blue-blind)

#003D3F

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #18374f;
/* rgb */ color: rgb(24, 55, 79);
/* oklch */ color: oklch(32.5% 0.057 244.2);

Tailwind

colors: {
  custom: {
    50: '#5b6d80',
    500: '#18374f',
    950: '#000000',
  },
}

SCSS

$custom: #18374f;
$custom-light: #5b6d80;
$custom-dark: #000000;

JSON

{
  "hex": "#18374f",
  "rgb": {
    "r": 24,
    "g": 55,
    "b": 79
  },
  "hsl": {
    "h": 206.182,
    "s": 53.398,
    "l": 20.196
  },
  "oklch": {
    "l": 0.32538,
    "c": 0.0565,
    "h": 244.2
  },
  "luminance": 0.03491
}

Semantic roles & 50–950 ramp

primary

#18374F

secondary

#865D3D

accent

#8B4BDD

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #18374F

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

Preview Lab → · Contrast checker → · Palette generator →