#18355C#18355C

#18355C is a dark, moderate cyan. Relative luminance 0.035; OKLCH L 32.8% C 0.078 H 256.5°. Best body text is #FFFFFF at 12.33:1 contrast (WCAG AA passes).

Color values

HEX	#18355C
RGB	rgb(24, 53, 92)
HSL	hsl(214, 59%, 23%)
HSV	hsv(214, 74%, 36%)
CMYK	cmyk(73.9%, 42.4%, 0%, 63.9%)
CIE-LAB	lab(21.99, 3.87, -26.54)
CIE-LCH	lch(21.99, 26.82, 278.29°)
OKLab	oklab(32.85% -0.0181 -0.0756)
OKLCH	oklch(32.85% 0.078 256.5)
XYZ	xyz(3.5809, 3.5127, 10.6124)
Luminance	0.0351 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18355C #5C3F18

analogous

#18575C #18355C #1D185C

triadic

#18355C #5C1835 #355C18

tetradic

#18355C #5C1857 #5C3F18 #185C1D

square

#18355C #5C1857 #5C3F18 #185C1D

split-complementary

#18355C #5C1D18 #575C18

monochromatic

#060E18 #0B192B #18355C #25518D #316DBD

Accessibility & contrast

On white

12.33

#18355C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#18355C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18355C

12.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18355C	#FFFFFF	#000000	##FFFFFF
##18355C	1.00	12.33	1.70	12.33
#FFFFFF	12.33	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23385E

Deuteranopia (green-blind)

#19325B

Tritanopia (blue-blind)

#003E44

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #18355c;
/* rgb */ color: rgb(24, 53, 92);
/* oklch */ color: oklch(32.8% 0.078 256.5);

Tailwind

colors: {
  custom: {
    50: '#5e6b8a',
    500: '#18355c',
    950: '#000000',
  },
}

SCSS

$custom: #18355c;
$custom-light: #5e6b8a;
$custom-dark: #000000;

JSON

{
  "hex": "#18355c",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 92
  },
  "hsl": {
    "h": 214.412,
    "s": 58.621,
    "l": 22.745
  },
  "oklch": {
    "l": 0.32846,
    "c": 0.07774,
    "h": 256.5
  },
  "luminance": 0.03513
}

Semantic roles & 50–950 ramp

primary

#18355C

secondary

#936E3D

accent

#9F46E2

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #18355C

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

Preview Lab → · Contrast checker → · Palette generator →