#423FD3#423FD3

#423FD3 is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.5% C 0.219 H 275.1°. Best body text is #FFFFFF at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#423FD3
RGB	rgb(66, 63, 211)
HSL	hsl(241, 63%, 54%)
HSV	hsv(241, 70%, 83%)
CMYK	cmyk(68.7%, 70.1%, 0%, 17.3%)
CIE-LAB	lab(36.77, 47.33, -75.32)
CIE-LCH	lch(36.77, 88.96, 302.15°)
OKLab	oklab(47.49% 0.0193 -0.2177)
OKLCH	oklch(47.49% 0.219 275.1)
XYZ	xyz(15.7783, 9.4149, 62.6011)
Luminance	0.0942 (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

#423FD3 #D0D33F

analogous

#3F86D3 #423FD3 #8C3FD3

triadic

#423FD3 #D3423F #3FD342

tetradic

#423FD3 #D33F86 #D0D33F #3FD38C

square

#423FD3 #D33F86 #D0D33F #3FD38C

split-complementary

#423FD3 #D38C3F #86D33F

monochromatic

#1E1C7B #2A28AD #423FD3 #7371DE #A4A3EA

Accessibility & contrast

On white

7.28

#423FD3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#423FD3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423FD3

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FD3	#FFFFFF	#000000	##FFFFFF
##423FD3	1.00	7.28	2.88	7.28
#FFFFFF	7.28	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD7

Deuteranopia (green-blind)

#0050D0

Tritanopia (blue-blind)

#006884

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #423fd3;
/* rgb */ color: rgb(66, 63, 211);
/* oklch */ color: oklch(47.5% 0.219 275.1);

Tailwind

colors: {
  custom: {
    50: '#8a75e2',
    500: '#423fd3',
    950: '#000000',
  },
}

SCSS

$custom: #423fd3;
$custom-light: #8a75e2;
$custom-dark: #000000;

JSON

{
  "hex": "#423fd3",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 211
  },
  "hsl": {
    "h": 241.216,
    "s": 62.712,
    "l": 53.725
  },
  "oklch": {
    "l": 0.4749,
    "c": 0.21853,
    "h": 275.1
  },
  "luminance": 0.09416
}

Semantic roles & 50–950 ramp

primary

#423FD3

secondary

#D5D797

accent

#E642E2

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #423FD3

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

Preview Lab → · Contrast checker → · Palette generator →