#183548#183548

#183548 is a dark, muted cyan. Relative luminance 0.032; OKLCH L 31.6% C 0.049 H 239.5°. Best body text is #FFFFFF at 12.79:1 contrast (WCAG AA passes).

Color values

HEX	#183548
RGB	rgb(24, 53, 72)
HSL	hsl(204, 50%, 19%)
HSV	hsv(204, 67%, 28%)
CMYK	cmyk(66.7%, 26.4%, 0%, 71.8%)
CIE-LAB	lab(20.86, -4.10, -15.02)
CIE-LCH	lch(20.86, 15.57, 254.73°)
OKLab	oklab(31.59% -0.0247 -0.0421)
OKLCH	oklch(31.59% 0.049 239.5)
XYZ	xyz(2.8191, 3.2080, 6.6003)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183548 #482B18

analogous

#184843 #183548 #181D48

triadic

#183548 #481835 #354818

tetradic

#183548 #431848 #482B18 #1D4818

square

#183548 #431848 #482B18 #1D4818

split-complementary

#183548 #48181D #484318

monochromatic

#081117 #09131A #183548 #275776 #3779A4

Accessibility & contrast

On white

12.79

#183548 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#183548 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183548

12.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183548	#FFFFFF	#000000	##FFFFFF
##183548	1.00	12.79	1.64	12.79
#FFFFFF	12.79	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3549

Deuteranopia (green-blind)

#263048

Tritanopia (blue-blind)

#003A3B

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #183548;
/* rgb */ color: rgb(24, 53, 72);
/* oklch */ color: oklch(31.6% 0.049 239.5);

Tailwind

colors: {
  custom: {
    50: '#5a6c7b',
    500: '#183548',
    950: '#000000',
  },
}

SCSS

$custom: #183548;
$custom-light: #5a6c7b;
$custom-dark: #000000;

JSON

{
  "hex": "#183548",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 72
  },
  "hsl": {
    "h": 203.75,
    "s": 50,
    "l": 18.824
  },
  "oklch": {
    "l": 0.31587,
    "c": 0.04882,
    "h": 239.5
  },
  "luminance": 0.03208
}

Semantic roles & 50–950 ramp

primary

#183548

secondary

#7F573D

accent

#854EDA

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#040609

muted

#797A7B

Preview Lab

Preview with #183548

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

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