#423FDA#423FDA

#423FDA is a mid, highly saturated blue. Relative luminance 0.098; OKLCH L 48.2% C 0.227 H 274.6°. Best body text is #FFFFFF at 7.11:1 contrast (WCAG AA passes).

Color values

HEX	#423FDA
RGB	rgb(66, 63, 218)
HSL	hsl(241, 68%, 55%)
HSV	hsv(241, 71%, 85%)
CMYK	cmyk(69.7%, 71.1%, 0%, 14.5%)
CIE-LAB	lab(37.43, 49.59, -78.26)
CIE-LCH	lch(37.43, 92.65, 302.36°)
OKLab	oklab(48.16% 0.0182 -0.2263)
OKLCH	oklch(48.16% 0.227 274.6)
XYZ	xyz(16.6750, 9.7736, 67.3238)
Luminance	0.0978 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.18

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423FDA #D7DA3F

analogous

#3F8ADA #423FDA #8F3FDA

triadic

#423FDA #DA423F #3FDA42

tetradic

#423FDA #DA3F8A #D7DA3F #3FDA8F

square

#423FDA #DA3F8A #D7DA3F #3FDA8F

split-complementary

#423FDA #DA8F3F #8ADA3F

monochromatic

#1C1A85 #2624B8 #423FDA #7572E4 #A7A6EE

Accessibility & contrast

On white

7.11

#423FDA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#423FDA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423FDA

7.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FDA	#FFFFFF	#000000	##FFFFFF
##423FDA	1.00	7.11	2.95	7.11
#FFFFFF	7.11	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FDF

Deuteranopia (green-blind)

#0051D7

Tritanopia (blue-blind)

#006A88

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #423fda;
/* rgb */ color: rgb(66, 63, 218);
/* oklch */ color: oklch(48.2% 0.227 274.6);

Tailwind

colors: {
  custom: {
    50: '#8b76e7',
    500: '#423fda',
    950: '#000000',
  },
}

SCSS

$custom: #423fda;
$custom-light: #8b76e7;
$custom-dark: #000000;

JSON

{
  "hex": "#423fda",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 218
  },
  "hsl": {
    "h": 241.161,
    "s": 67.686,
    "l": 55.098
  },
  "oklch": {
    "l": 0.48164,
    "c": 0.22699,
    "h": 274.6
  },
  "luminance": 0.09775
}

Semantic roles & 50–950 ramp

primary

#423FDA

secondary

#DADB9A

accent

#EB3DE7

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #423FDA

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

Preview Lab → · Contrast checker → · Palette generator →