#4233BA#4233BA

#4233BA is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.3% C 0.201 H 278.9°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#4233BA
RGB	rgb(66, 51, 186)
HSL	hsl(247, 57%, 46%)
HSV	hsv(247, 73%, 73%)
CMYK	cmyk(64.5%, 72.6%, 0%, 27.1%)
CIE-LAB	lab(31.97, 46.09, -68.62)
CIE-LCH	lch(31.97, 82.67, 303.89°)
OKLab	oklab(43.34% 0.0312 -0.1981)
OKLCH	oklch(43.34% 0.201 278.9)
XYZ	xyz(12.2907, 7.0701, 47.1618)
Luminance	0.0707 (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

#4233BA #ABBA33

analogous

#3368BA #4233BA #8633BA

triadic

#4233BA #BA4233 #33BA42

tetradic

#4233BA #BA3368 #ABBA33 #33BA86

square

#4233BA #BA3368 #ABBA33 #33BA86

split-complementary

#4233BA #BA8633 #68BA33

monochromatic

#20195A #31268A #4233BA #6659D1 #9289DF

Accessibility & contrast

On white

8.70

#4233BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#4233BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4233BA

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4233BA	#FFFFFF	#000000	##FFFFFF
##4233BA	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BE

Deuteranopia (green-blind)

#0046B8

Tritanopia (blue-blind)

#005973

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4233ba;
/* rgb */ color: rgb(66, 51, 186);
/* oklch */ color: oklch(43.3% 0.201 278.9);

Tailwind

colors: {
  custom: {
    50: '#866dd0',
    500: '#4233ba',
    950: '#000000',
  },
}

SCSS

$custom: #4233ba;
$custom-light: #866dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4233ba",
  "rgb": {
    "r": 66,
    "g": 51,
    "b": 186
  },
  "hsl": {
    "h": 246.667,
    "s": 56.962,
    "l": 46.471
  },
  "oklch": {
    "l": 0.43343,
    "c": 0.20052,
    "h": 278.9
  },
  "luminance": 0.07071
}

Semantic roles & 50–950 ramp

primary

#4233BA

secondary

#C0C980

accent

#E048CF

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4233BA

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

Preview Lab → · Contrast checker → · Palette generator →