#183653#183653

#183653 is a dark, moderate cyan. Relative luminance 0.035; OKLCH L 32.5% C 0.063 H 249.7°. Best body text is #FFFFFF at 12.42:1 contrast (WCAG AA passes).

Color values

HEX	#183653
RGB	rgb(24, 54, 83)
HSL	hsl(209, 55%, 21%)
HSV	hsv(209, 71%, 33%)
CMYK	cmyk(71.1%, 34.9%, 0%, 67.5%)
CIE-LAB	lab(21.79, -0.48, -20.92)
CIE-LCH	lch(21.79, 20.92, 268.69°)
OKLab	oklab(32.51% -0.0219 -0.0592)
OKLCH	oklch(32.51% 0.063 249.7)
XYZ	xyz(3.2566, 3.4567, 8.6775)
Luminance	0.0346 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183653 #533518

analogous

#185352 #183653 #181853

triadic

#183653 #531836 #365318

tetradic

#183653 #521853 #533518 #185318

square

#183653 #521853 #533518 #185318

split-complementary

#183653 #531818 #535218

monochromatic

#070F18 #0A1724 #183653 #265582 #3374B2

Accessibility & contrast

On white

12.42

#183653 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#183653 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183653

12.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183653	#FFFFFF	#000000	##FFFFFF
##183653	1.00	12.42	1.69	12.42
#FFFFFF	12.42	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293754

Deuteranopia (green-blind)

#213252

Tritanopia (blue-blind)

#003D40

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #183653;
/* rgb */ color: rgb(24, 54, 83);
/* oklch */ color: oklch(32.5% 0.063 249.7);

Tailwind

colors: {
  custom: {
    50: '#5c6c83',
    500: '#183653',
    950: '#000000',
  },
}

SCSS

$custom: #183653;
$custom-light: #5c6c83;
$custom-dark: #000000;

JSON

{
  "hex": "#183653",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 83
  },
  "hsl": {
    "h": 209.492,
    "s": 55.14,
    "l": 20.98
  },
  "oklch": {
    "l": 0.32512,
    "c": 0.0631,
    "h": 249.7
  },
  "luminance": 0.03457
}

Semantic roles & 50–950 ramp

primary

#183653

secondary

#8A633D

accent

#9349DE

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04070A

muted

#797A7C

Preview Lab

Preview with #183653

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

Preview Lab → · Contrast checker → · Palette generator →