#423CD5#423CD5

#423CD5 is a mid, highly saturated blue. Relative luminance 0.092; OKLCH L 47.2% C 0.224 H 275.3°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#423CD5
RGB	rgb(66, 60, 213)
HSL	hsl(242, 65%, 54%)
HSV	hsv(242, 72%, 84%)
CMYK	cmyk(69%, 71.8%, 0%, 16.5%)
CIE-LAB	lab(36.35, 49.66, -77.16)
CIE-LCH	lch(36.35, 91.76, 302.77°)
OKLab	oklab(47.25% 0.0207 -0.223)
OKLCH	oklch(47.25% 0.224 275.3)
XYZ	xyz(15.8689, 9.1926, 63.8759)
Luminance	0.0919 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.60

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423CD5 #CFD53C

analogous

#3C82D5 #423CD5 #8E3CD5

triadic

#423CD5 #D5423C #3CD542

tetradic

#423CD5 #D53C82 #CFD53C #3CD58E

square

#423CD5 #D53C82 #CFD53C #3CD58E

split-complementary

#423CD5 #D58E3C #82D53C

monochromatic

#1F1B7C #2B26AE #423CD5 #736EE0 #A4A1EB

Accessibility & contrast

On white

7.40

#423CD5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#423CD5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CD5

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CD5	#FFFFFF	#000000	##FFFFFF
##423CD5	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)

#005CDA

Deuteranopia (green-blind)

#004FD2

Tritanopia (blue-blind)

#006785

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #423cd5;
/* rgb */ color: rgb(66, 60, 213);
/* oklch */ color: oklch(47.2% 0.224 275.3);

Tailwind

colors: {
  custom: {
    50: '#8a74e3',
    500: '#423cd5',
    950: '#000000',
  },
}

SCSS

$custom: #423cd5;
$custom-light: #8a74e3;
$custom-dark: #000000;

JSON

{
  "hex": "#423cd5",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 213
  },
  "hsl": {
    "h": 242.353,
    "s": 64.557,
    "l": 53.529
  },
  "oklch": {
    "l": 0.47248,
    "c": 0.224,
    "h": 275.3
  },
  "luminance": 0.09194
}

Semantic roles & 50–950 ramp

primary

#423CD5

secondary

#D5D796

accent

#E840E1

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #423CD5

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

Preview Lab → · Contrast checker → · Palette generator →