#4233AC#4233AC

#4233AC is a dark, vivid blue. Relative luminance 0.065; OKLCH L 42.0% C 0.183 H 280.6°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#4233AC
RGB	rgb(66, 51, 172)
HSL	hsl(247, 54%, 44%)
HSV	hsv(247, 70%, 67%)
CMYK	cmyk(61.6%, 70.3%, 0%, 32.5%)
CIE-LAB	lab(30.65, 41.66, -62.46)
CIE-LCH	lch(30.65, 75.07, 303.70°)
OKLab	oklab(42% 0.0338 -0.18)
OKLCH	oklch(42% 0.183 280.6)
XYZ	xyz(10.8746, 6.5037, 39.7040)
Luminance	0.0650 (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

#4233AC #9DAC33

analogous

#3360AC #4233AC #7E33AC

triadic

#4233AC #AC4233 #33AC42

tetradic

#4233AC #AC3360 #9DAC33 #33AC7E

square

#4233AC #AC3360 #9DAC33 #33AC7E

split-complementary

#4233AC #AC7E33 #60AC33

monochromatic

#1E174E #30257D #4233AC #6051CB #8B80D9

Accessibility & contrast

On white

9.13

#4233AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#4233AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4233AC

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4233AC	#FFFFFF	#000000	##FFFFFF
##4233AC	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB0

Deuteranopia (green-blind)

#0044AA

Tritanopia (blue-blind)

#00536C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #4233ac;
/* rgb */ color: rgb(66, 51, 172);
/* oklch */ color: oklch(42.0% 0.183 280.6);

Tailwind

colors: {
  custom: {
    50: '#836cc6',
    500: '#4233ac',
    950: '#000000',
  },
}

SCSS

$custom: #4233ac;
$custom-light: #836cc6;
$custom-dark: #000000;

JSON

{
  "hex": "#4233ac",
  "rgb": {
    "r": 66,
    "g": 51,
    "b": 172
  },
  "hsl": {
    "h": 247.438,
    "s": 54.26,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42004,
    "c": 0.18319,
    "h": 280.6
  },
  "luminance": 0.06504
}

Semantic roles & 50–950 ramp

primary

#4233AC

secondary

#B9C278

accent

#DE4ACB

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4233AC

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

Preview Lab → · Contrast checker → · Palette generator →