#183884#183884

#183884 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.7% C 0.134 H 263.8°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#183884
RGB	rgb(24, 56, 132)
HSL	hsl(222, 69%, 31%)
HSV	hsv(222, 82%, 52%)
CMYK	cmyk(81.8%, 57.6%, 0%, 48.2%)
CIE-LAB	lab(25.83, 18.29, -45.98)
CIE-LCH	lch(25.83, 49.49, 291.69°)
OKLab	oklab(36.71% -0.0144 -0.1327)
OKLCH	oklch(36.71% 0.134 263.8)
XYZ	xyz(5.9542, 4.6878, 22.4163)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183884 #846418

analogous

#186E84 #183884 #2E1884

triadic

#183884 #841838 #388418

tetradic

#183884 #84186E #846418 #18842E

square

#183884 #84186E #846418 #18842E

split-complementary

#183884 #842E18 #6E8418

monochromatic

#050C1C #0F2250 #183884 #214EB8 #3B6BDB

Accessibility & contrast

On white

10.84

#183884 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#183884 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183884

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183884	#FFFFFF	#000000	##FFFFFF
##183884	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004287

Deuteranopia (green-blind)

#003883

Tritanopia (blue-blind)

#004B58

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #183884;
/* rgb */ color: rgb(24, 56, 132);
/* oklch */ color: oklch(36.7% 0.134 263.8);

Tailwind

colors: {
  custom: {
    50: '#686ea8',
    500: '#183884',
    950: '#000000',
  },
}

SCSS

$custom: #183884;
$custom-light: #686ea8;
$custom-dark: #000000;

JSON

{
  "hex": "#183884",
  "rgb": {
    "r": 24,
    "g": 56,
    "b": 132
  },
  "hsl": {
    "h": 222.222,
    "s": 69.231,
    "l": 30.588
  },
  "oklch": {
    "l": 0.36712,
    "c": 0.1335,
    "h": 263.8
  },
  "luminance": 0.04688
}

Semantic roles & 50–950 ramp

primary

#183884

secondary

#B89440

accent

#B83CEC

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #183884

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

Preview Lab → · Contrast checker → · Palette generator →