#183D48#183D48

#183D48 is a dark, muted cyan. Relative luminance 0.040; OKLCH L 33.8% C 0.046 H 220.2°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).

Color values

HEX	#183D48
RGB	rgb(24, 61, 72)
HSL	hsl(194, 50%, 19%)
HSV	hsv(194, 67%, 28%)
CMYK	cmyk(66.7%, 15.3%, 0%, 71.8%)
CIE-LAB	lab(23.67, -9.29, -10.69)
CIE-LCH	lch(23.67, 14.16, 229.02°)
OKLab	oklab(33.83% -0.0352 -0.0297)
OKLCH	oklch(33.83% 0.046 220.2)
XYZ	xyz(3.2147, 3.9992, 6.7322)
Luminance	0.0400 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D48 #482318

analogous

#18483B #183D48 #182548

triadic

#183D48 #48183D #3D4818

tetradic

#183D48 #3B1848 #482318 #254818

square

#183D48 #3B1848 #482318 #254818

split-complementary

#183D48 #481825 #483B18

monochromatic

#081317 #09161A #183D48 #276476 #378BA4

Accessibility & contrast

On white

11.67

#183D48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#183D48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D48

11.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D48	#FFFFFF	#000000	##FFFFFF
##183D48	1.00	11.67	1.80	11.67
#FFFFFF	11.67	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363B49

Deuteranopia (green-blind)

#2F3648

Tritanopia (blue-blind)

#004140

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #183d48;
/* rgb */ color: rgb(24, 61, 72);
/* oklch */ color: oklch(33.8% 0.046 220.2);

Tailwind

colors: {
  custom: {
    50: '#5b727b',
    500: '#183d48',
    950: '#000000',
  },
}

SCSS

$custom: #183d48;
$custom-light: #5b727b;
$custom-dark: #000000;

JSON

{
  "hex": "#183d48",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 72
  },
  "hsl": {
    "h": 193.75,
    "s": 50,
    "l": 18.824
  },
  "oklch": {
    "l": 0.33826,
    "c": 0.04605,
    "h": 220.2
  },
  "luminance": 0.04
}

Semantic roles & 50–950 ramp

primary

#183D48

secondary

#7F4C3D

accent

#6E4EDA

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040809

muted

#797B7B

Preview Lab

Preview with #183D48

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

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