#423FD5#423FD5

#423FD5 is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.7% C 0.221 H 274.9°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#423FD5
RGB	rgb(66, 63, 213)
HSL	hsl(241, 64%, 54%)
HSV	hsv(241, 70%, 84%)
CMYK	cmyk(69%, 70.4%, 0%, 16.5%)
CIE-LAB	lab(36.96, 47.98, -76.16)
CIE-LCH	lch(36.96, 90.02, 302.21°)
OKLab	oklab(47.68% 0.0189 -0.2201)
OKLCH	oklch(47.68% 0.221 274.9)
XYZ	xyz(16.0305, 9.5159, 63.9298)
Luminance	0.0952 (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

#423FD5 #D2D53F

analogous

#3F87D5 #423FD5 #8D3FD5

triadic

#423FD5 #D5423F #3FD542

tetradic

#423FD5 #D53F87 #D2D53F #3FD58D

square

#423FD5 #D53F87 #D2D53F #3FD58D

split-complementary

#423FD5 #D58D3F #87D53F

monochromatic

#1E1C7E #2927B0 #423FD5 #7371E0 #A5A3EB

Accessibility & contrast

On white

7.23

#423FD5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#423FD5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423FD5

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FD5	#FFFFFF	#000000	##FFFFFF
##423FD5	1.00	7.23	2.90	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED9

Deuteranopia (green-blind)

#0050D2

Tritanopia (blue-blind)

#006986

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #423fd5;
/* rgb */ color: rgb(66, 63, 213);
/* oklch */ color: oklch(47.7% 0.221 274.9);

Tailwind

colors: {
  custom: {
    50: '#8a75e3',
    500: '#423fd5',
    950: '#000000',
  },
}

SCSS

$custom: #423fd5;
$custom-light: #8a75e3;
$custom-dark: #000000;

JSON

{
  "hex": "#423fd5",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 213
  },
  "hsl": {
    "h": 241.2,
    "s": 64.103,
    "l": 54.118
  },
  "oklch": {
    "l": 0.47682,
    "c": 0.22095,
    "h": 274.9
  },
  "luminance": 0.09517
}

Semantic roles & 50–950 ramp

primary

#423FD5

secondary

#D7D898

accent

#E741E4

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #423FD5

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

Preview Lab → · Contrast checker → · Palette generator →