#183443#183443

#183443 is a dark, muted cyan. Relative luminance 0.031; OKLCH L 31.0% C 0.043 H 233.9°. Best body text is #FFFFFF at 13.04:1 contrast (WCAG AA passes).

Color values

HEX	#183443
RGB	rgb(24, 52, 67)
HSL	hsl(201, 47%, 18%)
HSV	hsv(201, 64%, 26%)
CMYK	cmyk(64.2%, 22.4%, 0%, 73.7%)
CIE-LAB	lab(20.26, -5.32, -12.56)
CIE-LCH	lch(20.26, 13.64, 247.05°)
OKLab	oklab(31.04% -0.0255 -0.035)
OKLCH	oklch(31.04% 0.043 233.9)
XYZ	xyz(2.6174, 3.0552, 5.7609)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183443 #432718

analogous

#18433C #183443 #181E43

triadic

#183443 #431834 #344318

tetradic

#183443 #3C1843 #432718 #1E4318

square

#183443 #3C1843 #432718 #1E4318

split-complementary

#183443 #43181E #433C18

monochromatic

#081117 #081117 #183443 #285770 #387A9D

Accessibility & contrast

On white

13.04

#183443 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#183443 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183443

13.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183443	#FFFFFF	#000000	##FFFFFF
##183443	1.00	13.04	1.61	13.04
#FFFFFF	13.04	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3344

Deuteranopia (green-blind)

#272F43

Tritanopia (blue-blind)

#003839

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #183443;
/* rgb */ color: rgb(24, 52, 67);
/* oklch */ color: oklch(31.0% 0.043 233.9);

Tailwind

colors: {
  custom: {
    50: '#596b77',
    500: '#183443',
    950: '#000000',
  },
}

SCSS

$custom: #183443;
$custom-light: #596b77;
$custom-dark: #000000;

JSON

{
  "hex": "#183443",
  "rgb": {
    "r": 24,
    "g": 52,
    "b": 67
  },
  "hsl": {
    "h": 200.93,
    "s": 47.253,
    "l": 17.843
  },
  "oklch": {
    "l": 0.31035,
    "c": 0.04334,
    "h": 233.9
  },
  "luminance": 0.03055
}

Semantic roles & 50–950 ramp

primary

#183443

secondary

#7A523D

accent

#8051D7

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#040608

muted

#797A7B

Preview Lab

Preview with #183443

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

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