#423FC8#423FC8

#423FC8 is a mid, highly saturated blue. Relative luminance 0.089; OKLCH L 46.5% C 0.205 H 275.8°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#423FC8
RGB	rgb(66, 63, 200)
HSL	hsl(241, 55%, 52%)
HSV	hsv(241, 69%, 78%)
CMYK	cmyk(67%, 68.5%, 0%, 21.6%)
CIE-LAB	lab(35.76, 43.75, -70.61)
CIE-LCH	lch(35.76, 83.06, 301.78°)
OKLab	oklab(46.45% 0.0208 -0.2039)
OKLCH	oklch(46.45% 0.205 275.8)
XYZ	xyz(14.4462, 8.8821, 55.5855)
Luminance	0.0888 (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

#423FC8 #C5C83F

analogous

#3F81C8 #423FC8 #873FC8

triadic

#423FC8 #C8423F #3FC842

tetradic

#423FC8 #C83F81 #C5C83F #3FC887

square

#423FC8 #C83F81 #C5C83F #3FC887

split-complementary

#423FC8 #C8873F #81C83F

monochromatic

#211F6D #2F2D9D #423FC8 #716FD6 #A09EE3

Accessibility & contrast

On white

7.56

#423FC8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#423FC8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423FC8

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FC8	#FFFFFF	#000000	##FFFFFF
##423FC8	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACC

Deuteranopia (green-blind)

#004EC5

Tritanopia (blue-blind)

#00647E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #423fc8;
/* rgb */ color: rgb(66, 63, 200);
/* oklch */ color: oklch(46.5% 0.205 275.8);

Tailwind

colors: {
  custom: {
    50: '#8775da',
    500: '#423fc8',
    950: '#000000',
  },
}

SCSS

$custom: #423fc8;
$custom-light: #8775da;
$custom-dark: #000000;

JSON

{
  "hex": "#423fc8",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 200
  },
  "hsl": {
    "h": 241.314,
    "s": 55.466,
    "l": 51.569
  },
  "oklch": {
    "l": 0.46453,
    "c": 0.20497,
    "h": 275.8
  },
  "luminance": 0.08883
}

Semantic roles & 50–950 ramp

primary

#423FC8

secondary

#CED093

accent

#DF49DC

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423FC8

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

Preview Lab → · Contrast checker → · Palette generator →