#423FC0#423FC0

#423FC0 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.7% C 0.195 H 276.4°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#423FC0
RGB	rgb(66, 63, 192)
HSL	hsl(241, 51%, 50%)
HSV	hsv(241, 67%, 75%)
CMYK	cmyk(65.6%, 67.2%, 0%, 24.7%)
CIE-LAB	lab(35.04, 41.11, -67.11)
CIE-LCH	lch(35.04, 78.70, 301.49°)
OKLab	oklab(45.72% 0.0218 -0.1937)
OKLCH	oklch(45.72% 0.195 276.4)
XYZ	xyz(13.5356, 8.5179, 50.7898)
Luminance	0.0852 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.38

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423FC0 #BDC03F

analogous

#3F7DC0 #423FC0 #823FC0

triadic

#423FC0 #C0423F #3FC042

tetradic

#423FC0 #C03F7D #BDC03F #3FC082

square

#423FC0 #C03F7D #BDC03F #3FC082

split-complementary

#423FC0 #C0823F #7DC03F

monochromatic

#222164 #323092 #423FC0 #6F6DCF #9D9BDE

Accessibility & contrast

On white

7.77

#423FC0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#423FC0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423FC0

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FC0	#FFFFFF	#000000	##FFFFFF
##423FC0	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C4

Deuteranopia (green-blind)

#004DBE

Tritanopia (blue-blind)

#00617A

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #423fc0;
/* rgb */ color: rgb(66, 63, 192);
/* oklch */ color: oklch(45.7% 0.195 276.4);

Tailwind

colors: {
  custom: {
    50: '#8675d4',
    500: '#423fc0',
    950: '#000000',
  },
}

SCSS

$custom: #423fc0;
$custom-light: #8675d4;
$custom-dark: #000000;

JSON

{
  "hex": "#423fc0",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 192
  },
  "hsl": {
    "h": 241.395,
    "s": 50.588,
    "l": 50
  },
  "oklch": {
    "l": 0.45716,
    "c": 0.1949,
    "h": 276.4
  },
  "luminance": 0.08519
}

Semantic roles & 50–950 ramp

primary

#423FC0

secondary

#C9CA91

accent

#DA4ED7

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #423FC0

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

Preview Lab → · Contrast checker → · Palette generator →