#183368#183368

#183368 is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.2% C 0.099 H 262.2°. Best body text is #FFFFFF at 12.26:1 contrast (WCAG AA passes).

Color values

HEX	#183368
RGB	rgb(24, 51, 104)
HSL	hsl(220, 63%, 25%)
HSV	hsv(220, 77%, 41%)
CMYK	cmyk(76.9%, 51%, 0%, 59.2%)
CIE-LAB	lab(22.16, 10.26, -34.10)
CIE-LCH	lch(22.16, 35.61, 286.75°)
OKLab	oklab(33.24% -0.0135 -0.0979)
OKLCH	oklch(33.24% 0.099 262.2)
XYZ	xyz(4.0583, 3.5609, 13.5675)
Luminance	0.0356 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183368 #684D18

analogous

#185B68 #183368 #251868

triadic

#183368 #681833 #336818

tetradic

#183368 #68185B #684D18 #186825

square

#183368 #68185B #684D18 #186825

split-complementary

#183368 #682518 #5B6818

monochromatic

#060C19 #0D1B36 #183368 #234B9A #2F64CB

Accessibility & contrast

On white

12.26

#183368 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#183368 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183368

12.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183368	#FFFFFF	#000000	##FFFFFF
##183368	1.00	12.26	1.71	12.26
#FFFFFF	12.26	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16396A

Deuteranopia (green-blind)

#013267

Tritanopia (blue-blind)

#004048

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #183368;
/* rgb */ color: rgb(24, 51, 104);
/* oklch */ color: oklch(33.2% 0.099 262.2);

Tailwind

colors: {
  custom: {
    50: '#616a93',
    500: '#183368',
    950: '#000000',
  },
}

SCSS

$custom: #183368;
$custom-light: #616a93;
$custom-dark: #000000;

JSON

{
  "hex": "#183368",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 104
  },
  "hsl": {
    "h": 219.75,
    "s": 62.5,
    "l": 25.098
  },
  "oklch": {
    "l": 0.33242,
    "c": 0.09878,
    "h": 262.2
  },
  "luminance": 0.03561
}

Semantic roles & 50–950 ramp

primary

#183368

secondary

#9E7E3E

accent

#AE42E6

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#05060D

muted

#7A7A7E

Preview Lab

Preview with #183368

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

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