#423FF1#423FF1

#423FF1 is a mid, highly saturated blue. Relative luminance 0.111; OKLCH L 50.4% C 0.254 H 273.2°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#423FF1
RGB	rgb(66, 63, 241)
HSL	hsl(241, 86%, 60%)
HSV	hsv(241, 74%, 95%)
CMYK	cmyk(72.6%, 73.9%, 0%, 5.5%)
CIE-LAB	lab(39.68, 56.86, -87.63)
CIE-LCH	lch(39.68, 104.46, 302.98°)
OKLab	oklab(50.44% 0.0142 -0.2536)
OKLCH	oklch(50.44% 0.254 273.2)
XYZ	xyz(19.8961, 11.0621, 84.2887)
Luminance	0.1106 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423FF1 #EEF13F

analogous

#3F95F1 #423FF1 #9B3FF1

triadic

#423FF1 #F1423F #3FF142

tetradic

#423FF1 #F13F95 #EEF13F #3FF19B

square

#423FF1 #F13F95 #EEF13F #3FF19B

split-complementary

#423FF1 #F19B3F #95F13F

monochromatic

#0F0CA9 #1411E2 #423FF1 #7A78F5 #B2B1F9

Accessibility & contrast

On white

6.54

#423FF1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#423FF1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #423FF1

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FF1	#FFFFFF	#000000	##FFFFFF
##423FF1	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066F6

Deuteranopia (green-blind)

#0055EE

Tritanopia (blue-blind)

#007395

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #423ff1;
/* rgb */ color: rgb(66, 63, 241);
/* oklch */ color: oklch(50.4% 0.254 273.2);

Tailwind

colors: {
  custom: {
    50: '#9077f7',
    500: '#423ff1',
    950: '#000000',
  },
}

SCSS

$custom: #423ff1;
$custom-light: #9077f7;
$custom-dark: #000000;

JSON

{
  "hex": "#423ff1",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 241
  },
  "hsl": {
    "h": 241.011,
    "s": 86.408,
    "l": 59.608
  },
  "oklch": {
    "l": 0.50437,
    "c": 0.25396,
    "h": 273.2
  },
  "luminance": 0.11064
}

Semantic roles & 50–950 ramp

primary

#423FF1

secondary

#E7E8A3

accent

#FD2BF9

background

#F9F7FF

surface

#F2EDFF

border

#CCC8D7

text

#0F0917

muted

#7E7B85

Preview Lab

Preview with #423FF1

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

Preview Lab → · Contrast checker → · Palette generator →