#183C48#183C48

#183C48 is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.5% C 0.046 H 222.7°. Best body text is #FFFFFF at 11.81:1 contrast (WCAG AA passes).

Color values

HEX	#183C48
RGB	rgb(24, 60, 72)
HSL	hsl(195, 50%, 19%)
HSV	hsv(195, 67%, 28%)
CMYK	cmyk(66.7%, 16.7%, 0%, 71.8%)
CIE-LAB	lab(23.32, -8.66, -11.23)
CIE-LCH	lch(23.32, 14.18, 232.36°)
OKLab	oklab(33.54% -0.0339 -0.0312)
OKLCH	oklch(33.54% 0.046 222.7)
XYZ	xyz(3.1618, 3.8935, 6.7145)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183C48 #482418

analogous

#18483C #183C48 #182448

triadic

#183C48 #48183C #3C4818

tetradic

#183C48 #3C1848 #482418 #244818

square

#183C48 #3C1848 #482418 #244818

split-complementary

#183C48 #481824 #483C18

monochromatic

#081317 #09161A #183C48 #276276 #3789A4

Accessibility & contrast

On white

11.81

#183C48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#183C48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183C48

11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183C48	#FFFFFF	#000000	##FFFFFF
##183C48	1.00	11.81	1.78	11.81
#FFFFFF	11.81	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353A49

Deuteranopia (green-blind)

#2E3548

Tritanopia (blue-blind)

#004040

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #183c48;
/* rgb */ color: rgb(24, 60, 72);
/* oklch */ color: oklch(33.5% 0.046 222.7);

Tailwind

colors: {
  custom: {
    50: '#5b717b',
    500: '#183c48',
    950: '#000000',
  },
}

SCSS

$custom: #183c48;
$custom-light: #5b717b;
$custom-dark: #000000;

JSON

{
  "hex": "#183c48",
  "rgb": {
    "r": 24,
    "g": 60,
    "b": 72
  },
  "hsl": {
    "h": 195,
    "s": 50,
    "l": 18.824
  },
  "oklch": {
    "l": 0.33543,
    "c": 0.04608,
    "h": 222.7
  },
  "luminance": 0.03894
}

Semantic roles & 50–950 ramp

primary

#183C48

secondary

#7F4D3D

accent

#714EDA

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040709

muted

#797A7B

Preview Lab

Preview with #183C48

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

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