#183649#183649

#183649 is a dark, muted cyan. Relative luminance 0.033; OKLCH L 31.9% C 0.049 H 238.7°. Best body text is #FFFFFF at 12.63:1 contrast (WCAG AA passes).

Color values

HEX	#183649
RGB	rgb(24, 54, 73)
HSL	hsl(203, 51%, 19%)
HSV	hsv(203, 67%, 29%)
CMYK	cmyk(67.1%, 26%, 0%, 71.4%)
CIE-LAB	lab(21.26, -4.39, -15.07)
CIE-LCH	lch(21.26, 15.70, 253.76°)
OKLab	oklab(31.92% -0.0256 -0.0422)
OKLCH	oklch(31.92% 0.049 238.7)
XYZ	xyz(2.8980, 3.3133, 6.7888)
Luminance	0.0331 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183649 #492B18

analogous

#184944 #183649 #181E49

triadic

#183649 #491836 #364918

tetradic

#183649 #441849 #492B18 #1E4918

square

#183649 #441849 #492B18 #1E4918

split-complementary

#183649 #49181E #494418

monochromatic

#081117 #09141B #183649 #275877 #367AA5

Accessibility & contrast

On white

12.63

#183649 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#183649 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183649

12.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183649	#FFFFFF	#000000	##FFFFFF
##183649	1.00	12.63	1.66	12.63
#FFFFFF	12.63	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D364A

Deuteranopia (green-blind)

#273149

Tritanopia (blue-blind)

#003B3C

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #183649;
/* rgb */ color: rgb(24, 54, 73);
/* oklch */ color: oklch(31.9% 0.049 238.7);

Tailwind

colors: {
  custom: {
    50: '#5a6c7b',
    500: '#183649',
    950: '#000000',
  },
}

SCSS

$custom: #183649;
$custom-light: #5a6c7b;
$custom-dark: #000000;

JSON

{
  "hex": "#183649",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 73
  },
  "hsl": {
    "h": 203.265,
    "s": 50.515,
    "l": 19.02
  },
  "oklch": {
    "l": 0.3192,
    "c": 0.04941,
    "h": 238.7
  },
  "luminance": 0.03314
}

Semantic roles & 50–950 ramp

primary

#183649

secondary

#80573D

accent

#844EDA

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #183649

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

Preview Lab → · Contrast checker → · Palette generator →