#183552#183552

#183552 is a dark, moderate cyan. Relative luminance 0.034; OKLCH L 32.2% C 0.063 H 250.4°. Best body text is #FFFFFF at 12.57:1 contrast (WCAG AA passes).

Color values

HEX	#183552
RGB	rgb(24, 53, 82)
HSL	hsl(210, 55%, 21%)
HSV	hsv(210, 71%, 32%)
CMYK	cmyk(70.7%, 35.4%, 0%, 67.8%)
CIE-LAB	lab(21.39, -0.19, -20.88)
CIE-LCH	lch(21.39, 20.88, 269.48°)
OKLab	oklab(32.18% -0.0211 -0.059)
OKLCH	oklch(32.18% 0.063 250.4)
XYZ	xyz(3.1722, 3.3493, 8.4603)
Luminance	0.0335 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183552 #523518

analogous

#185252 #183552 #181852

triadic

#183552 #521835 #355218

tetradic

#183552 #521852 #523518 #185218

square

#183552 #521852 #523518 #185218

split-complementary

#183552 #521818 #525218

monochromatic

#070F18 #0A1623 #183552 #265481 #3472B1

Accessibility & contrast

On white

12.57

#183552 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#183552 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183552

12.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183552	#FFFFFF	#000000	##FFFFFF
##183552	1.00	12.57	1.67	12.57
#FFFFFF	12.57	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283653

Deuteranopia (green-blind)

#203151

Tritanopia (blue-blind)

#003C3F

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #183552;
/* rgb */ color: rgb(24, 53, 82);
/* oklch */ color: oklch(32.2% 0.063 250.4);

Tailwind

colors: {
  custom: {
    50: '#5c6c82',
    500: '#183552',
    950: '#000000',
  },
}

SCSS

$custom: #183552;
$custom-light: #5c6c82;
$custom-dark: #000000;

JSON

{
  "hex": "#183552",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 82
  },
  "hsl": {
    "h": 210,
    "s": 54.717,
    "l": 20.784
  },
  "oklch": {
    "l": 0.32183,
    "c": 0.06269,
    "h": 250.4
  },
  "luminance": 0.0335
}

Semantic roles & 50–950 ramp

primary

#183552

secondary

#89633D

accent

#944ADE

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060A

muted

#797A7C

Preview Lab

Preview with #183552

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

Preview Lab → · Contrast checker → · Palette generator →