#423AE1#423AE1

#423AE1 is a mid, highly saturated blue. Relative luminance 0.096; OKLCH L 48.2% C 0.240 H 274.7°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#423AE1
RGB	rgb(66, 58, 225)
HSL	hsl(243, 74%, 55%)
HSV	hsv(243, 74%, 88%)
CMYK	cmyk(70.7%, 74.2%, 0%, 11.8%)
CIE-LAB	lab(37.15, 54.52, -82.74)
CIE-LCH	lch(37.15, 99.08, 303.38°)
OKLab	oklab(48.17% 0.0195 -0.2393)
OKLCH	oklch(48.17% 0.24 274.7)
XYZ	xyz(17.3459, 9.6189, 72.1621)
Luminance	0.0962 (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

#423AE1 #D9E13A

analogous

#3A86E1 #423AE1 #953AE1

triadic

#423AE1 #E1423A #3AE142

tetradic

#423AE1 #E13A86 #D9E13A #3AE195

square

#423AE1 #E13A86 #D9E13A #3AE195

split-complementary

#423AE1 #E1953A #86E13A

monochromatic

#1B158B #251DC0 #423AE1 #756FE9 #A8A4F1

Accessibility & contrast

On white

7.18

#423AE1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#423AE1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423AE1

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423AE1	#FFFFFF	#000000	##FFFFFF
##423AE1	1.00	7.18	2.92	7.18
#FFFFFF	7.18	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FE6

Deuteranopia (green-blind)

#0050DE

Tritanopia (blue-blind)

#006B8B

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #423ae1;
/* rgb */ color: rgb(66, 58, 225);
/* oklch */ color: oklch(48.2% 0.240 274.7);

Tailwind

colors: {
  custom: {
    50: '#8d73ec',
    500: '#423ae1',
    950: '#000000',
  },
}

SCSS

$custom: #423ae1;
$custom-light: #8d73ec;
$custom-dark: #000000;

JSON

{
  "hex": "#423ae1",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 225
  },
  "hsl": {
    "h": 242.874,
    "s": 73.568,
    "l": 55.49
  },
  "oklch": {
    "l": 0.48167,
    "c": 0.24006,
    "h": 274.7
  },
  "luminance": 0.09621
}

Semantic roles & 50–950 ramp

primary

#423AE1

secondary

#DBDE99

accent

#F038E7

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #423AE1

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

Preview Lab → · Contrast checker → · Palette generator →