#183568#183568

#183568 is a dark, moderate blue. Relative luminance 0.037; OKLCH L 33.7% C 0.096 H 260.8°. Best body text is #FFFFFF at 12.01:1 contrast (WCAG AA passes).

Color values

HEX	#183568
RGB	rgb(24, 53, 104)
HSL	hsl(218, 63%, 25%)
HSV	hsv(218, 77%, 41%)
CMYK	cmyk(76.9%, 49%, 0%, 59.2%)
CIE-LAB	lab(22.79, 8.83, -33.09)
CIE-LCH	lch(22.79, 34.25, 284.94°)
OKLab	oklab(33.72% -0.0154 -0.0948)
OKLCH	oklch(33.72% 0.096 260.8)
XYZ	xyz(4.1476, 3.7394, 13.5972)
Luminance	0.0374 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183568 #684B18

analogous

#185D68 #183568 #231868

triadic

#183568 #681835 #356818

tetradic

#183568 #68185D #684B18 #186823

square

#183568 #68185D #684B18 #186823

split-complementary

#183568 #682318 #5D6818

monochromatic

#060D19 #0D1C36 #183568 #234E9A #2F68CB

Accessibility & contrast

On white

12.01

#183568 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#183568 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183568

12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183568	#FFFFFF	#000000	##FFFFFF
##183568	1.00	12.01	1.75	12.01
#FFFFFF	12.01	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A3A6A

Deuteranopia (green-blind)

#083367

Tritanopia (blue-blind)

#004149

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #183568;
/* rgb */ color: rgb(24, 53, 104);
/* oklch */ color: oklch(33.7% 0.096 260.8);

Tailwind

colors: {
  custom: {
    50: '#616b93',
    500: '#183568',
    950: '#000000',
  },
}

SCSS

$custom: #183568;
$custom-light: #616b93;
$custom-dark: #000000;

JSON

{
  "hex": "#183568",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 104
  },
  "hsl": {
    "h": 218.25,
    "s": 62.5,
    "l": 25.098
  },
  "oklch": {
    "l": 0.33724,
    "c": 0.0961,
    "h": 260.8
  },
  "luminance": 0.0374
}

Semantic roles & 50–950 ramp

primary

#183568

secondary

#9E7B3E

accent

#AA42E6

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#05060D

muted

#7A7A7E

Preview Lab

Preview with #183568

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

Preview Lab → · Contrast checker → · Palette generator →