#423ACB#423ACB

#423ACB is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 46.0% C 0.214 H 276.3°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#423ACB
RGB	rgb(66, 58, 203)
HSL	hsl(243, 58%, 51%)
HSV	hsv(243, 71%, 80%)
CMYK	cmyk(67.5%, 71.4%, 0%, 20.4%)
CIE-LAB	lab(34.99, 47.59, -73.61)
CIE-LCH	lch(34.99, 87.65, 302.88°)
OKLab	oklab(45.99% 0.0236 -0.2127)
OKLCH	oklch(45.99% 0.214 276.3)
XYZ	xyz(14.5358, 8.4949, 57.3620)
Luminance	0.0850 (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

#423ACB #C3CB3A

analogous

#3A7ACB #423ACB #8A3ACB

triadic

#423ACB #CB423A #3ACB42

tetradic

#423ACB #CB3A7A #C3CB3A #3ACB8A

square

#423ACB #CB3A7A #C3CB3A #3ACB8A

split-complementary

#423ACB #CB8A3A #7ACB3A

monochromatic

#211D6E #302A9E #423ACB #706AD8 #9F9BE5

Accessibility & contrast

On white

7.78

#423ACB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#423ACB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423ACB

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423ACB	#FFFFFF	#000000	##FFFFFF
##423ACB	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059CF

Deuteranopia (green-blind)

#004CC8

Tritanopia (blue-blind)

#00627F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #423acb;
/* rgb */ color: rgb(66, 58, 203);
/* oklch */ color: oklch(46.0% 0.214 276.3);

Tailwind

colors: {
  custom: {
    50: '#8872dc',
    500: '#423acb',
    950: '#000000',
  },
}

SCSS

$custom: #423acb;
$custom-light: #8872dc;
$custom-dark: #000000;

JSON

{
  "hex": "#423acb",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 203
  },
  "hsl": {
    "h": 243.31,
    "s": 58.233,
    "l": 51.176
  },
  "oklch": {
    "l": 0.4599,
    "c": 0.21397,
    "h": 276.3
  },
  "luminance": 0.08496
}

Semantic roles & 50–950 ramp

primary

#423ACB

secondary

#CDD090

accent

#E146D9

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423ACB

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

Preview Lab → · Contrast checker → · Palette generator →