#183E48#183E48

#183E48 is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.1% C 0.046 H 217.7°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#183E48
RGB	rgb(24, 62, 72)
HSL	hsl(193, 50%, 19%)
HSV	hsv(193, 67%, 28%)
CMYK	cmyk(66.7%, 13.9%, 0%, 71.8%)
CIE-LAB	lab(24.02, -9.91, -10.15)
CIE-LCH	lch(24.02, 14.19, 225.68°)
OKLab	oklab(34.11% -0.0365 -0.0282)
OKLCH	oklch(34.11% 0.046 217.7)
XYZ	xyz(3.2685, 4.1070, 6.7501)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183E48 #482218

analogous

#18483A #183E48 #182648

triadic

#183E48 #48183E #3E4818

tetradic

#183E48 #3A1848 #482218 #264818

square

#183E48 #3A1848 #482218 #264818

split-complementary

#183E48 #481826 #483A18

monochromatic

#081417 #09161A #183E48 #276676 #378DA4

Accessibility & contrast

On white

11.53

#183E48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#183E48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183E48

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183E48	#FFFFFF	#000000	##FFFFFF
##183E48	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373C49

Deuteranopia (green-blind)

#303748

Tritanopia (blue-blind)

#004241

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #183e48;
/* rgb */ color: rgb(24, 62, 72);
/* oklch */ color: oklch(34.1% 0.046 217.7);

Tailwind

colors: {
  custom: {
    50: '#5b737b',
    500: '#183e48',
    950: '#000000',
  },
}

SCSS

$custom: #183e48;
$custom-light: #5b737b;
$custom-dark: #000000;

JSON

{
  "hex": "#183e48",
  "rgb": {
    "r": 24,
    "g": 62,
    "b": 72
  },
  "hsl": {
    "h": 192.5,
    "s": 50,
    "l": 18.824
  },
  "oklch": {
    "l": 0.34108,
    "c": 0.0461,
    "h": 217.7
  },
  "luminance": 0.04107
}

Semantic roles & 50–950 ramp

primary

#183E48

secondary

#7F4B3D

accent

#6B4EDA

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040809

muted

#797B7B

Preview Lab

Preview with #183E48

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

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