#423CD9#423CD9

#423CD9 is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.6% C 0.229 H 275.0°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#423CD9
RGB	rgb(66, 60, 217)
HSL	hsl(242, 67%, 54%)
HSV	hsv(242, 72%, 85%)
CMYK	cmyk(69.6%, 72.4%, 0%, 14.9%)
CIE-LAB	lab(36.74, 50.93, -78.83)
CIE-LCH	lch(36.74, 93.85, 302.87°)
OKLab	oklab(47.64% 0.02 -0.2279)
OKLCH	oklch(47.64% 0.229 275)
XYZ	xyz(16.3829, 9.3982, 66.5828)
Luminance	0.0940 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.77

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423CD9 #D3D93C

analogous

#3C85D9 #423CD9 #913CD9

triadic

#423CD9 #D9423C #3CD942

tetradic

#423CD9 #D93C85 #D3D93C #3CD991

square

#423CD9 #D93C85 #D3D93C #3CD991

split-complementary

#423CD9 #D9913C #85D93C

monochromatic

#1D1981 #2923B5 #423CD9 #746FE3 #A5A2ED

Accessibility & contrast

On white

7.29

#423CD9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#423CD9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CD9

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CD9	#FFFFFF	#000000	##FFFFFF
##423CD9	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DDE

Deuteranopia (green-blind)

#004FD6

Tritanopia (blue-blind)

#006987

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #423cd9;
/* rgb */ color: rgb(66, 60, 217);
/* oklch */ color: oklch(47.6% 0.229 275.0);

Tailwind

colors: {
  custom: {
    50: '#8b74e6',
    500: '#423cd9',
    950: '#000000',
  },
}

SCSS

$custom: #423cd9;
$custom-light: #8b74e6;
$custom-dark: #000000;

JSON

{
  "hex": "#423cd9",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 217
  },
  "hsl": {
    "h": 242.293,
    "s": 67.382,
    "l": 54.314
  },
  "oklch": {
    "l": 0.4764,
    "c": 0.22877,
    "h": 275
  },
  "luminance": 0.094
}

Semantic roles & 50–950 ramp

primary

#423CD9

secondary

#D7DA97

accent

#EA3EE4

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #423CD9

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

Preview Lab → · Contrast checker → · Palette generator →