#423AD9#423AD9

#423AD9 is a mid, highly saturated blue. Relative luminance 0.092; OKLCH L 47.4% C 0.231 H 275.2°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#423AD9
RGB	rgb(66, 58, 217)
HSL	hsl(243, 68%, 54%)
HSV	hsv(243, 73%, 85%)
CMYK	cmyk(69.6%, 73.3%, 0%, 14.9%)
CIE-LAB	lab(36.35, 52.02, -79.47)
CIE-LCH	lch(36.35, 94.98, 303.21°)
OKLab	oklab(47.37% 0.021 -0.2297)
OKLCH	oklch(47.37% 0.231 275.2)
XYZ	xyz(16.2801, 9.1926, 66.5486)
Luminance	0.0919 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.62

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423AD9 #D1D93A

analogous

#3A82D9 #423AD9 #923AD9

triadic

#423AD9 #D9423A #3AD942

tetradic

#423AD9 #D93A82 #D1D93A #3AD992

square

#423AD9 #D93A82 #D1D93A #3AD992

split-complementary

#423AD9 #D9923A #82D93A

monochromatic

#1E1980 #2A23B3 #423AD9 #736DE3 #A4A1ED

Accessibility & contrast

On white

7.40

#423AD9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#423AD9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423AD9

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423AD9	#FFFFFF	#000000	##FFFFFF
##423AD9	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DDE

Deuteranopia (green-blind)

#004ED6

Tritanopia (blue-blind)

#006887

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #423ad9;
/* rgb */ color: rgb(66, 58, 217);
/* oklch */ color: oklch(47.4% 0.231 275.2);

Tailwind

colors: {
  custom: {
    50: '#8b72e6',
    500: '#423ad9',
    950: '#000000',
  },
}

SCSS

$custom: #423ad9;
$custom-light: #8b72e6;
$custom-dark: #000000;

JSON

{
  "hex": "#423ad9",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 217
  },
  "hsl": {
    "h": 243.019,
    "s": 67.66,
    "l": 53.922
  },
  "oklch": {
    "l": 0.47365,
    "c": 0.23071,
    "h": 275.2
  },
  "luminance": 0.09194
}

Semantic roles & 50–950 ramp

primary

#423AD9

secondary

#D6D995

accent

#EB3DE2

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #423AD9

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

Preview Lab → · Contrast checker → · Palette generator →