#183D47#183D47

#183D47 is a dark, muted cyan. Relative luminance 0.040; OKLCH L 33.8% C 0.045 H 218.2°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#183D47
RGB	rgb(24, 61, 71)
HSL	hsl(193, 49%, 19%)
HSV	hsv(193, 66%, 28%)
CMYK	cmyk(66.2%, 14.1%, 0%, 72.2%)
CIE-LAB	lab(23.63, -9.65, -10.09)
CIE-LCH	lch(23.63, 13.96, 226.28°)
OKLab	oklab(33.78% -0.0356 -0.028)
OKLCH	oklch(33.78% 0.045 218.2)
XYZ	xyz(3.1823, 3.9863, 6.5617)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D47 #472218

analogous

#184739 #183D47 #182547

triadic

#183D47 #47183D #3D4718

tetradic

#183D47 #391847 #472218 #254718

square

#183D47 #391847 #472218 #254718

split-complementary

#183D47 #471825 #473918

monochromatic

#081417 #091619 #183D47 #276475 #378CA2

Accessibility & contrast

On white

11.68

#183D47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#183D47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D47

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D47	#FFFFFF	#000000	##FFFFFF
##183D47	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373B48

Deuteranopia (green-blind)

#303647

Tritanopia (blue-blind)

#004040

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #183d47;
/* rgb */ color: rgb(24, 61, 71);
/* oklch */ color: oklch(33.8% 0.045 218.2);

Tailwind

colors: {
  custom: {
    50: '#5b727a',
    500: '#183d47',
    950: '#000000',
  },
}

SCSS

$custom: #183d47;
$custom-light: #5b727a;
$custom-dark: #000000;

JSON

{
  "hex": "#183d47",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 71
  },
  "hsl": {
    "h": 192.766,
    "s": 49.474,
    "l": 18.627
  },
  "oklch": {
    "l": 0.33777,
    "c": 0.04534,
    "h": 218.2
  },
  "luminance": 0.03987
}

Semantic roles & 50–950 ramp

primary

#183D47

secondary

#7E4B3D

accent

#6C4FD9

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040809

muted

#797B7B

Preview Lab

Preview with #183D47

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

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