#183883#183883

#183883 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.6% C 0.132 H 263.7°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#183883
RGB	rgb(24, 56, 131)
HSL	hsl(222, 69%, 30%)
HSV	hsv(222, 82%, 51%)
CMYK	cmyk(81.7%, 57.3%, 0%, 48.6%)
CIE-LAB	lab(25.74, 17.88, -45.49)
CIE-LCH	lch(25.74, 48.88, 291.46°)
OKLab	oklab(36.63% -0.0145 -0.1313)
OKLCH	oklch(36.63% 0.132 263.7)
XYZ	xyz(5.8861, 4.6605, 22.0577)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183883 #836318

analogous

#186D83 #183883 #2D1883

triadic

#183883 #831838 #388318

tetradic

#183883 #83186D #836318 #18832D

square

#183883 #83186D #836318 #18832D

split-complementary

#183883 #832D18 #6D8318

monochromatic

#050C1C #0F224F #183883 #214EB7 #3A6ADB

Accessibility & contrast

On white

10.87

#183883 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#183883 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183883

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183883	#FFFFFF	#000000	##FFFFFF
##183883	1.00	10.87	1.93	10.87
#FFFFFF	10.87	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004286

Deuteranopia (green-blind)

#003882

Tritanopia (blue-blind)

#004B57

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #183883;
/* rgb */ color: rgb(24, 56, 131);
/* oklch */ color: oklch(36.6% 0.132 263.7);

Tailwind

colors: {
  custom: {
    50: '#686ea8',
    500: '#183883',
    950: '#000000',
  },
}

SCSS

$custom: #183883;
$custom-light: #686ea8;
$custom-dark: #000000;

JSON

{
  "hex": "#183883",
  "rgb": {
    "r": 24,
    "g": 56,
    "b": 131
  },
  "hsl": {
    "h": 222.056,
    "s": 69.032,
    "l": 30.392
  },
  "oklch": {
    "l": 0.36626,
    "c": 0.13207,
    "h": 263.7
  },
  "luminance": 0.04661
}

Semantic roles & 50–950 ramp

primary

#183883

secondary

#B79340

accent

#B73CEC

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #183883

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

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