#18455C#18455C

#18455C is a dark, moderate cyan. Relative luminance 0.052; OKLCH L 37.1% C 0.063 H 234.4°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#18455C
RGB	rgb(24, 69, 92)
HSL	hsl(200, 59%, 23%)
HSV	hsv(200, 74%, 36%)
CMYK	cmyk(73.9%, 25%, 0%, 63.9%)
CIE-LAB	lab(27.36, -6.88, -18.10)
CIE-LCH	lch(27.36, 19.36, 249.19°)
OKLab	oklab(37.08% -0.0364 -0.0508)
OKLCH	oklch(37.08% 0.063 234.4)
XYZ	xyz(4.4358, 5.2227, 10.8974)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18455C #5C2F18

analogous

#185C51 #18455C #18235C

triadic

#18455C #5C1845 #455C18

tetradic

#18455C #51185C #5C2F18 #235C18

square

#18455C #51185C #5C2F18 #235C18

split-complementary

#18455C #5C1823 #5C5118

monochromatic

#061218 #0B212B #18455C #25698D #318EBD

Accessibility & contrast

On white

10.27

#18455C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#18455C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18455C

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18455C	#FFFFFF	#000000	##FFFFFF
##18455C	1.00	10.27	2.04	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A445D

Deuteranopia (green-blind)

#313E5C

Tritanopia (blue-blind)

#004B4D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #18455c;
/* rgb */ color: rgb(24, 69, 92);
/* oklch */ color: oklch(37.1% 0.063 234.4);

Tailwind

colors: {
  custom: {
    50: '#5f788a',
    500: '#18455c',
    950: '#000000',
  },
}

SCSS

$custom: #18455c;
$custom-light: #5f788a;
$custom-dark: #000000;

JSON

{
  "hex": "#18455c",
  "rgb": {
    "r": 24,
    "g": 69,
    "b": 92
  },
  "hsl": {
    "h": 200.294,
    "s": 58.621,
    "l": 22.745
  },
  "oklch": {
    "l": 0.37075,
    "c": 0.06253,
    "h": 234.4
  },
  "luminance": 0.05223
}

Semantic roles & 50–950 ramp

primary

#18455C

secondary

#935A3D

accent

#7B46E2

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05090B

muted

#797B7C

Preview Lab

Preview with #18455C

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

Preview Lab → · Contrast checker → · Palette generator →