#184558#184558

#184558 is a dark, muted cyan. Relative luminance 0.052; OKLCH L 36.9% C 0.058 H 229.3°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).

Color values

HEX	#184558
RGB	rgb(24, 69, 88)
HSL	hsl(198, 57%, 22%)
HSV	hsv(198, 73%, 35%)
CMYK	cmyk(72.7%, 21.6%, 0%, 65.5%)
CIE-LAB	lab(27.17, -8.40, -15.81)
CIE-LCH	lch(27.17, 17.90, 242.02°)
OKLab	oklab(36.86% -0.038 -0.0443)
OKLCH	oklch(36.86% 0.058 229.3)
XYZ	xyz(4.2656, 5.1546, 10.0008)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#184558 #582B18

analogous

#18584B #184558 #182558

triadic

#184558 #581845 #455818

tetradic

#184558 #4B1858 #582B18 #255818

square

#184558 #4B1858 #582B18 #255818

split-complementary

#184558 #581825 #584B18

monochromatic

#071318 #0B1F28 #184558 #256B88 #3290B8

Accessibility & contrast

On white

10.34

#184558 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#184558 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #184558

10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##184558	#FFFFFF	#000000	##FFFFFF
##184558	1.00	10.34	2.03	10.34
#FFFFFF	10.34	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B4459

Deuteranopia (green-blind)

#323D58

Tritanopia (blue-blind)

#004A4B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #184558;
/* rgb */ color: rgb(24, 69, 88);
/* oklch */ color: oklch(36.9% 0.058 229.3);

Tailwind

colors: {
  custom: {
    50: '#5e7887',
    500: '#184558',
    950: '#000000',
  },
}

SCSS

$custom: #184558;
$custom-light: #5e7887;
$custom-dark: #000000;

JSON

{
  "hex": "#184558",
  "rgb": {
    "r": 24,
    "g": 69,
    "b": 88
  },
  "hsl": {
    "h": 197.813,
    "s": 57.143,
    "l": 21.961
  },
  "oklch": {
    "l": 0.36861,
    "c": 0.05835,
    "h": 229.3
  },
  "luminance": 0.05155
}

Semantic roles & 50–950 ramp

primary

#184558

secondary

#8F553D

accent

#7547E0

background

#F5F7F8

surface

#E9EDEF

border

#C5C8CA

text

#05090B

muted

#797B7C

Preview Lab

Preview with #184558

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

Preview Lab → · Contrast checker → · Palette generator →