#18455D#18455D

#18455D is a dark, moderate cyan. Relative luminance 0.052; OKLCH L 37.1% C 0.064 H 235.6°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#18455D
RGB	rgb(24, 69, 93)
HSL	hsl(201, 59%, 23%)
HSV	hsv(201, 74%, 36%)
CMYK	cmyk(74.2%, 25.8%, 0%, 63.5%)
CIE-LAB	lab(27.41, -6.50, -18.67)
CIE-LCH	lch(27.41, 19.77, 250.81°)
OKLab	oklab(37.13% -0.036 -0.0525)
OKLCH	oklch(37.13% 0.064 235.6)
XYZ	xyz(4.4798, 5.2403, 11.1292)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18455D #5D3018

analogous

#185D52 #18455D #18225D

triadic

#18455D #5D1845 #455D18

tetradic

#18455D #52185D #5D3018 #225D18

square

#18455D #52185D #5D3018 #225D18

split-complementary

#18455D #5D1822 #5D5218

monochromatic

#061218 #0B212C #18455D #25698E #318DBE

Accessibility & contrast

On white

10.25

#18455D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#18455D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18455D

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18455D	#FFFFFF	#000000	##FFFFFF
##18455D	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39455E

Deuteranopia (green-blind)

#303E5D

Tritanopia (blue-blind)

#004B4D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #18455d;
/* rgb */ color: rgb(24, 69, 93);
/* oklch */ color: oklch(37.1% 0.064 235.6);

Tailwind

colors: {
  custom: {
    50: '#5f788b',
    500: '#18455d',
    950: '#000000',
  },
}

SCSS

$custom: #18455d;
$custom-light: #5f788b;
$custom-dark: #000000;

JSON

{
  "hex": "#18455d",
  "rgb": {
    "r": 24,
    "g": 69,
    "b": 93
  },
  "hsl": {
    "h": 200.87,
    "s": 58.974,
    "l": 22.941
  },
  "oklch": {
    "l": 0.37129,
    "c": 0.06364,
    "h": 235.6
  },
  "luminance": 0.05241
}

Semantic roles & 50–950 ramp

primary

#18455D

secondary

#935B3D

accent

#7C46E2

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05090C

muted

#797B7D

Preview Lab

Preview with #18455D

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

Preview Lab → · Contrast checker → · Palette generator →