#4233AA#4233AA

#4233AA is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.8% C 0.181 H 280.9°. Best body text is #FFFFFF at 9.19:1 contrast (WCAG AA passes).

Color values

HEX	#4233AA
RGB	rgb(66, 51, 170)
HSL	hsl(248, 54%, 43%)
HSV	hsv(248, 70%, 67%)
CMYK	cmyk(61.2%, 70%, 0%, 33.3%)
CIE-LAB	lab(30.47, 41.02, -61.56)
CIE-LCH	lch(30.47, 73.97, 303.68°)
OKLab	oklab(41.82% 0.0342 -0.1774)
OKLCH	oklch(41.82% 0.181 280.9)
XYZ	xyz(10.6840, 6.4274, 38.7000)
Luminance	0.0643 (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

#4233AA #9BAA33

analogous

#335FAA #4233AA #7D33AA

triadic

#4233AA #AA4233 #33AA42

tetradic

#4233AA #AA335F #9BAA33 #33AA7D

square

#4233AA #AA335F #9BAA33 #33AA7D

split-complementary

#4233AA #AA7D33 #5FAA33

monochromatic

#1D174C #30257B #4233AA #5F50CA #8A7FD9

Accessibility & contrast

On white

9.19

#4233AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#4233AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4233AA

9.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4233AA	#FFFFFF	#000000	##FFFFFF
##4233AA	1.00	9.19	2.29	9.19
#FFFFFF	9.19	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CAE

Deuteranopia (green-blind)

#0043A8

Tritanopia (blue-blind)

#00536A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #4233aa;
/* rgb */ color: rgb(66, 51, 170);
/* oklch */ color: oklch(41.8% 0.181 280.9);

Tailwind

colors: {
  custom: {
    50: '#826cc4',
    500: '#4233aa',
    950: '#000000',
  },
}

SCSS

$custom: #4233aa;
$custom-light: #826cc4;
$custom-dark: #000000;

JSON

{
  "hex": "#4233aa",
  "rgb": {
    "r": 66,
    "g": 51,
    "b": 170
  },
  "hsl": {
    "h": 247.563,
    "s": 53.846,
    "l": 43.333
  },
  "oklch": {
    "l": 0.41817,
    "c": 0.18066,
    "h": 280.9
  },
  "luminance": 0.06428
}

Semantic roles & 50–950 ramp

primary

#4233AA

secondary

#B8C277

accent

#DD4BCB

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4233AA

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

Preview Lab → · Contrast checker → · Palette generator →