#18375A#18375A

#18375A is a dark, moderate cyan. Relative luminance 0.037; OKLCH L 33.2% C 0.072 H 253.2°. Best body text is #FFFFFF at 12.12:1 contrast (WCAG AA passes).

Color values

HEX	#18375A
RGB	rgb(24, 55, 90)
HSL	hsl(212, 58%, 22%)
HSV	hsv(212, 73%, 35%)
CMYK	cmyk(73.3%, 38.9%, 0%, 64.7%)
CIE-LAB	lab(22.53, 1.65, -24.37)
CIE-LCH	lch(22.53, 24.43, 273.87°)
OKLab	oklab(33.23% -0.0209 -0.0692)
OKLCH	oklch(33.23% 0.072 253.2)
XYZ	xyz(3.5877, 3.6644, 10.1891)
Luminance	0.0367 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18375A #5A3B18

analogous

#18585A #18375A #1A185A

triadic

#18375A #5A1837 #375A18

tetradic

#18375A #5A1858 #5A3B18 #185A1A

square

#18375A #5A1858 #5A3B18 #185A1A

split-complementary

#18375A #5A1A18 #585A18

monochromatic

#060F18 #0B192A #18375A #25558A #3272BB

Accessibility & contrast

On white

12.12

#18375A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#18375A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18375A

12.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18375A	#FFFFFF	#000000	##FFFFFF
##18375A	1.00	12.12	1.73	12.12
#FFFFFF	12.12	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27395B

Deuteranopia (green-blind)

#1E3359

Tritanopia (blue-blind)

#003F44

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #18375a;
/* rgb */ color: rgb(24, 55, 90);
/* oklch */ color: oklch(33.2% 0.072 253.2);

Tailwind

colors: {
  custom: {
    50: '#5e6d89',
    500: '#18375a',
    950: '#000000',
  },
}

SCSS

$custom: #18375a;
$custom-light: #5e6d89;
$custom-dark: #000000;

JSON

{
  "hex": "#18375a",
  "rgb": {
    "r": 24,
    "g": 55,
    "b": 90
  },
  "hsl": {
    "h": 211.818,
    "s": 57.895,
    "l": 22.353
  },
  "oklch": {
    "l": 0.33227,
    "c": 0.07232,
    "h": 253.2
  },
  "luminance": 0.03665
}

Semantic roles & 50–950 ramp

primary

#18375A

secondary

#91693D

accent

#9947E1

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05070B

muted

#797A7C

Preview Lab

Preview with #18375A

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

Preview Lab → · Contrast checker → · Palette generator →