#423AC5#423AC5

#423AC5 is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.4% C 0.207 H 276.8°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#423AC5
RGB	rgb(66, 58, 197)
HSL	hsl(243, 55%, 50%)
HSV	hsv(243, 71%, 77%)
CMYK	cmyk(66.5%, 70.6%, 0%, 22.7%)
CIE-LAB	lab(34.43, 45.66, -71.05)
CIE-LCH	lch(34.43, 84.45, 302.73°)
OKLab	oklab(45.41% 0.0246 -0.2052)
OKLCH	oklch(45.41% 0.207 276.8)
XYZ	xyz(13.8346, 8.2144, 53.6690)
Luminance	0.0822 (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

#423AC5 #BDC53A

analogous

#3A78C5 #423AC5 #873AC5

triadic

#423AC5 #C5423A #3AC542

tetradic

#423AC5 #C53A78 #BDC53A #3AC587

square

#423AC5 #C53A78 #BDC53A #3AC587

split-complementary

#423AC5 #C5873A #78C53A

monochromatic

#221E66 #322C96 #423AC5 #6F69D3 #9D99E1

Accessibility & contrast

On white

7.94

#423AC5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#423AC5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423AC5

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423AC5	#FFFFFF	#000000	##FFFFFF
##423AC5	1.00	7.94	2.64	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C9

Deuteranopia (green-blind)

#004BC2

Tritanopia (blue-blind)

#00607B

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #423ac5;
/* rgb */ color: rgb(66, 58, 197);
/* oklch */ color: oklch(45.4% 0.207 276.8);

Tailwind

colors: {
  custom: {
    50: '#8772d8',
    500: '#423ac5',
    950: '#000000',
  },
}

SCSS

$custom: #423ac5;
$custom-light: #8772d8;
$custom-dark: #000000;

JSON

{
  "hex": "#423ac5",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 197
  },
  "hsl": {
    "h": 243.453,
    "s": 54.51,
    "l": 50
  },
  "oklch": {
    "l": 0.45413,
    "c": 0.20665,
    "h": 276.8
  },
  "luminance": 0.08216
}

Semantic roles & 50–950 ramp

primary

#423AC5

secondary

#C9CD8E

accent

#DE4AD5

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423AC5

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

Preview Lab → · Contrast checker → · Palette generator →