#183367#183367

#183367 is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.2% C 0.097 H 261.9°. Best body text is #FFFFFF at 12.29:1 contrast (WCAG AA passes).

Color values

HEX	#183367
RGB	rgb(24, 51, 103)
HSL	hsl(219, 62%, 25%)
HSV	hsv(219, 77%, 40%)
CMYK	cmyk(76.7%, 50.5%, 0%, 59.6%)
CIE-LAB	lab(22.09, 9.85, -33.56)
CIE-LCH	lch(22.09, 34.98, 286.35°)
OKLab	oklab(33.16% -0.0136 -0.0963)
OKLCH	oklch(33.16% 0.097 261.9)
XYZ	xyz(4.0078, 3.5407, 13.3015)
Luminance	0.0354 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183367 #674C18

analogous

#185A67 #183367 #251867

triadic

#183367 #671833 #336718

tetradic

#183367 #67185A #674C18 #186725

square

#183367 #67185A #674C18 #186725

split-complementary

#183367 #672518 #5A6718

monochromatic

#060C19 #0C1A35 #183367 #244C99 #2F64CA

Accessibility & contrast

On white

12.29

#183367 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#183367 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183367

12.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183367	#FFFFFF	#000000	##FFFFFF
##183367	1.00	12.29	1.71	12.29
#FFFFFF	12.29	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#173969

Deuteranopia (green-blind)

#033166

Tritanopia (blue-blind)

#003F48

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #183367;
/* rgb */ color: rgb(24, 51, 103);
/* oklch */ color: oklch(33.2% 0.097 261.9);

Tailwind

colors: {
  custom: {
    50: '#616a93',
    500: '#183367',
    950: '#000000',
  },
}

SCSS

$custom: #183367;
$custom-light: #616a93;
$custom-dark: #000000;

JSON

{
  "hex": "#183367",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 103
  },
  "hsl": {
    "h": 219.494,
    "s": 62.205,
    "l": 24.902
  },
  "oklch": {
    "l": 0.33164,
    "c": 0.09725,
    "h": 261.9
  },
  "luminance": 0.03541
}

Semantic roles & 50–950 ramp

primary

#183367

secondary

#9D7C3E

accent

#AE43E5

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#05060D

muted

#7A7A7E

Preview Lab

Preview with #183367

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

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