#18355D#18355D

#18355D is a dark, moderate cyan. Relative luminance 0.035; OKLCH L 32.9% C 0.079 H 257.0°. Best body text is #FFFFFF at 12.31:1 contrast (WCAG AA passes).

Color values

HEX	#18355D
RGB	rgb(24, 53, 93)
HSL	hsl(215, 59%, 23%)
HSV	hsv(215, 74%, 36%)
CMYK	cmyk(74.2%, 43%, 0%, 63.5%)
CIE-LAB	lab(22.05, 4.28, -27.10)
CIE-LCH	lch(22.05, 27.43, 278.97°)
OKLab	oklab(32.92% -0.0178 -0.0772)
OKLCH	oklch(32.92% 0.079 257)
XYZ	xyz(3.6249, 3.5303, 10.8442)
Luminance	0.0353 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18355D #5D4018

analogous

#18575D #18355D #1E185D

triadic

#18355D #5D1835 #355D18

tetradic

#18355D #5D1857 #5D4018 #185D1E

square

#18355D #5D1857 #5D4018 #185D1E

split-complementary

#18355D #5D1E18 #575D18

monochromatic

#060E18 #0B192C #18355D #25518E #316CBE

Accessibility & contrast

On white

12.31

#18355D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#18355D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18355D

12.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18355D	#FFFFFF	#000000	##FFFFFF
##18355D	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)

#23385F

Deuteranopia (green-blind)

#18325C

Tritanopia (blue-blind)

#003E44

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #18355d;
/* rgb */ color: rgb(24, 53, 93);
/* oklch */ color: oklch(32.9% 0.079 257.0);

Tailwind

colors: {
  custom: {
    50: '#5e6b8b',
    500: '#18355d',
    950: '#000000',
  },
}

SCSS

$custom: #18355d;
$custom-light: #5e6b8b;
$custom-dark: #000000;

JSON

{
  "hex": "#18355d",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 93
  },
  "hsl": {
    "h": 214.783,
    "s": 58.974,
    "l": 22.941
  },
  "oklch": {
    "l": 0.32916,
    "c": 0.07927,
    "h": 257
  },
  "luminance": 0.03531
}

Semantic roles & 50–950 ramp

primary

#18355D

secondary

#936F3D

accent

#A046E2

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #18355D

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

Preview Lab → · Contrast checker → · Palette generator →