#4233AD#4233AD

#4233AD is a dark, vivid blue. Relative luminance 0.065; OKLCH L 42.1% C 0.184 H 280.5°. Best body text is #FFFFFF at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#4233AD
RGB	rgb(66, 51, 173)
HSL	hsl(247, 54%, 44%)
HSV	hsv(247, 71%, 68%)
CMYK	cmyk(61.8%, 70.5%, 0%, 32.2%)
CIE-LAB	lab(30.74, 41.98, -62.90)
CIE-LCH	lch(30.74, 75.62, 303.72°)
OKLab	oklab(42.1% 0.0336 -0.1813)
OKLCH	oklch(42.1% 0.184 280.5)
XYZ	xyz(10.9710, 6.5422, 40.2117)
Luminance	0.0654 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4233AD #9EAD33

analogous

#3361AD #4233AD #7F33AD

triadic

#4233AD #AD4233 #33AD42

tetradic

#4233AD #AD3361 #9EAD33 #33AD7F

square

#4233AD #AD3361 #9EAD33 #33AD7F

split-complementary

#4233AD #AD7F33 #61AD33

monochromatic

#1E174E #30257E #4233AD #6051CC #8C81DA

Accessibility & contrast

On white

9.10

#4233AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#4233AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4233AD

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4233AD	#FFFFFF	#000000	##FFFFFF
##4233AD	1.00	9.10	2.31	9.10
#FFFFFF	9.10	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB1

Deuteranopia (green-blind)

#0044AB

Tritanopia (blue-blind)

#00546C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #4233ad;
/* rgb */ color: rgb(66, 51, 173);
/* oklch */ color: oklch(42.1% 0.184 280.5);

Tailwind

colors: {
  custom: {
    50: '#836cc7',
    500: '#4233ad',
    950: '#000000',
  },
}

SCSS

$custom: #4233ad;
$custom-light: #836cc7;
$custom-dark: #000000;

JSON

{
  "hex": "#4233ad",
  "rgb": {
    "r": 66,
    "g": 51,
    "b": 173
  },
  "hsl": {
    "h": 247.377,
    "s": 54.464,
    "l": 43.922
  },
  "oklch": {
    "l": 0.42098,
    "c": 0.18444,
    "h": 280.5
  },
  "luminance": 0.06543
}

Semantic roles & 50–950 ramp

primary

#4233AD

secondary

#BAC379

accent

#DE4ACC

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4233AD

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

Preview Lab → · Contrast checker → · Palette generator →