#423FD0#423FD0

#423FD0 is a mid, highly saturated blue. Relative luminance 0.093; OKLCH L 47.2% C 0.215 H 275.3°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX	#423FD0
RGB	rgb(66, 63, 208)
HSL	hsl(241, 61%, 53%)
HSV	hsv(241, 70%, 82%)
CMYK	cmyk(68.3%, 69.7%, 0%, 18.4%)
CIE-LAB	lab(36.49, 46.36, -74.05)
CIE-LCH	lch(36.49, 87.36, 302.05°)
OKLab	oklab(47.21% 0.0197 -0.214)
OKLCH	oklch(47.21% 0.215 275.3)
XYZ	xyz(15.4057, 9.2659, 60.6389)
Luminance	0.0927 (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

#423FD0 #CDD03F

analogous

#3F85D0 #423FD0 #8A3FD0

triadic

#423FD0 #D0423F #3FD042

tetradic

#423FD0 #D03F85 #CDD03F #3FD08A

square

#423FD0 #D03F85 #CDD03F #3FD08A

split-complementary

#423FD0 #D08A3F #85D03F

monochromatic

#1F1D77 #2C29A9 #423FD0 #7270DC #A3A1E8

Accessibility & contrast

On white

7.36

#423FD0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#423FD0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423FD0

7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FD0	#FFFFFF	#000000	##FFFFFF
##423FD0	1.00	7.36	2.85	7.36
#FFFFFF	7.36	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CD4

Deuteranopia (green-blind)

#004FCD

Tritanopia (blue-blind)

#006783

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #423fd0;
/* rgb */ color: rgb(66, 63, 208);
/* oklch */ color: oklch(47.2% 0.215 275.3);

Tailwind

colors: {
  custom: {
    50: '#8975e0',
    500: '#423fd0',
    950: '#000000',
  },
}

SCSS

$custom: #423fd0;
$custom-light: #8975e0;
$custom-dark: #000000;

JSON

{
  "hex": "#423fd0",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 208
  },
  "hsl": {
    "h": 241.241,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.47205,
    "c": 0.21487,
    "h": 275.3
  },
  "luminance": 0.09267
}

Semantic roles & 50–950 ramp

primary

#423FD0

secondary

#D3D596

accent

#E444E0

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423FD0

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

Preview Lab → · Contrast checker → · Palette generator →