#423BC4#423BC4

#423BC4 is a mid, highly saturated blue. Relative luminance 0.083; OKLCH L 45.5% C 0.204 H 276.8°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#423BC4
RGB	rgb(66, 59, 196)
HSL	hsl(243, 54%, 50%)
HSV	hsv(243, 70%, 77%)
CMYK	cmyk(66.3%, 69.9%, 0%, 23.1%)
CIE-LAB	lab(34.54, 44.77, -70.27)
CIE-LCH	lch(34.54, 83.32, 302.50°)
OKLab	oklab(45.47% 0.0241 -0.2029)
OKLCH	oklch(45.47% 0.204 276.8)
XYZ	xyz(13.7713, 8.2705, 53.0845)
Luminance	0.0827 (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

#423BC4 #BDC43B

analogous

#3B78C4 #423BC4 #873BC4

triadic

#423BC4 #C4423B #3BC442

tetradic

#423BC4 #C43B78 #BDC43B #3BC487

square

#423BC4 #C43B78 #BDC43B #3BC487

split-complementary

#423BC4 #C4873B #78C43B

monochromatic

#221F66 #322D95 #423BC4 #6F6AD2 #9D99E0

Accessibility & contrast

On white

7.91

#423BC4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#423BC4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423BC4

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423BC4	#FFFFFF	#000000	##FFFFFF
##423BC4	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C8

Deuteranopia (green-blind)

#004BC1

Tritanopia (blue-blind)

#00607B

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #423bc4;
/* rgb */ color: rgb(66, 59, 196);
/* oklch */ color: oklch(45.5% 0.204 276.8);

Tailwind

colors: {
  custom: {
    50: '#8772d7',
    500: '#423bc4',
    950: '#000000',
  },
}

SCSS

$custom: #423bc4;
$custom-light: #8772d7;
$custom-dark: #000000;

JSON

{
  "hex": "#423bc4",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 196
  },
  "hsl": {
    "h": 243.066,
    "s": 53.725,
    "l": 50
  },
  "oklch": {
    "l": 0.45467,
    "c": 0.20434,
    "h": 276.8
  },
  "luminance": 0.08272
}

Semantic roles & 50–950 ramp

primary

#423BC4

secondary

#C9CC8F

accent

#DD4BD6

background

#F9F7FD

surface

#F1EDFA

border

#CBC8D3

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423BC4

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

Preview Lab → · Contrast checker → · Palette generator →