#423FDE#423FDE

#423FDE is a mid, highly saturated blue. Relative luminance 0.100; OKLCH L 48.6% C 0.232 H 274.3°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#423FDE
RGB	rgb(66, 63, 222)
HSL	hsl(241, 71%, 56%)
HSV	hsv(241, 72%, 87%)
CMYK	cmyk(70.3%, 71.6%, 0%, 12.9%)
CIE-LAB	lab(37.82, 50.87, -79.92)
CIE-LCH	lch(37.82, 94.74, 302.48°)
OKLab	oklab(48.55% 0.0175 -0.2311)
OKLCH	oklch(48.55% 0.232 274.3)
XYZ	xyz(17.2047, 9.9855, 70.1138)
Luminance	0.0999 (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

#423FDE #DBDE3F

analogous

#3F8BDE #423FDE #913FDE

triadic

#423FDE #DE423F #3FDE42

tetradic

#423FDE #DE3F8B #DBDE3F #3FDE91

square

#423FDE #DE3F8B #DBDE3F #3FDE91

split-complementary

#423FDE #DE913F #8BDE3F

monochromatic

#1A188B #2421BF #423FDE #7573E7 #A9A7F0

Accessibility & contrast

On white

7.01

#423FDE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#423FDE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #423FDE

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FDE	#FFFFFF	#000000	##FFFFFF
##423FDE	1.00	7.01	3.00	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060E3

Deuteranopia (green-blind)

#0051DB

Tritanopia (blue-blind)

#006C8B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #423fde;
/* rgb */ color: rgb(66, 63, 222);
/* oklch */ color: oklch(48.6% 0.232 274.3);

Tailwind

colors: {
  custom: {
    50: '#8c76ea',
    500: '#423fde',
    950: '#000000',
  },
}

SCSS

$custom: #423fde;
$custom-light: #8c76ea;
$custom-dark: #000000;

JSON

{
  "hex": "#423fde",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 222
  },
  "hsl": {
    "h": 241.132,
    "s": 70.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.48552,
    "c": 0.23176,
    "h": 274.3
  },
  "luminance": 0.09987
}

Semantic roles & 50–950 ramp

primary

#423FDE

secondary

#DCDD9B

accent

#ED3AEA

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #423FDE

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

Preview Lab → · Contrast checker → · Palette generator →