#183083#183083

#183083 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.9% C 0.142 H 266.4°. Best body text is #FFFFFF at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#183083
RGB	rgb(24, 48, 131)
HSL	hsl(227, 69%, 30%)
HSV	hsv(227, 82%, 51%)
CMYK	cmyk(81.7%, 63.4%, 0%, 48.6%)
CIE-LAB	lab(23.49, 23.51, -49.16)
CIE-LCH	lch(23.49, 54.49, 295.56°)
OKLab	oklab(34.94% -0.009 -0.1422)
OKLCH	oklch(34.94% 0.142 266.4)
XYZ	xyz(5.5289, 3.9461, 21.9386)
Luminance	0.0395 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183083 #836B18

analogous

#186583 #183083 #351883

triadic

#183083 #831830 #308318

tetradic

#183083 #831865 #836B18 #188335

square

#183083 #831865 #836B18 #188335

split-complementary

#183083 #833518 #658318

monochromatic

#050A1C #0F1D4F #183083 #2143B7 #3A5EDB

Accessibility & contrast

On white

11.74

#183083 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#183083 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183083

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183083	#FFFFFF	#000000	##FFFFFF
##183083	1.00	11.74	1.79	11.74
#FFFFFF	11.74	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D86

Deuteranopia (green-blind)

#003381

Tritanopia (blue-blind)

#004554

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #183083;
/* rgb */ color: rgb(24, 48, 131);
/* oklch */ color: oklch(34.9% 0.142 266.4);

Tailwind

colors: {
  custom: {
    50: '#6868a8',
    500: '#183083',
    950: '#000000',
  },
}

SCSS

$custom: #183083;
$custom-light: #6868a8;
$custom-dark: #000000;

JSON

{
  "hex": "#183083",
  "rgb": {
    "r": 24,
    "g": 48,
    "b": 131
  },
  "hsl": {
    "h": 226.542,
    "s": 69.032,
    "l": 30.392
  },
  "oklch": {
    "l": 0.34939,
    "c": 0.14247,
    "h": 266.4
  },
  "luminance": 0.03947
}

Semantic roles & 50–950 ramp

primary

#183083

secondary

#B79C40

accent

#C43CEC

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #183083

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

Preview Lab → · Contrast checker → · Palette generator →