#423DD4#423DD4

#423DD4 is a mid, highly saturated blue. Relative luminance 0.092; OKLCH L 47.3% C 0.222 H 275.2°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#423DD4
RGB	rgb(66, 61, 212)
HSL	hsl(242, 64%, 54%)
HSV	hsv(242, 71%, 83%)
CMYK	cmyk(68.9%, 71.2%, 0%, 16.9%)
CIE-LAB	lab(36.46, 48.79, -76.41)
CIE-LCH	lch(36.46, 90.66, 302.56°)
OKLab	oklab(47.29% 0.0203 -0.2209)
OKLCH	oklch(47.29% 0.222 275.2)
XYZ	xyz(15.7953, 9.2477, 63.2272)
Luminance	0.0925 (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

#423DD4 #CFD43D

analogous

#3D83D4 #423DD4 #8D3DD4

triadic

#423DD4 #D4423D #3DD442

tetradic

#423DD4 #D43D83 #CFD43D #3DD48D

square

#423DD4 #D43D83 #CFD43D #3DD48D

split-complementary

#423DD4 #D48D3D #83D43D

monochromatic

#1F1B7B #2B26AD #423DD4 #736FDF #A4A1EA

Accessibility & contrast

On white

7.37

#423DD4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#423DD4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423DD4

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423DD4	#FFFFFF	#000000	##FFFFFF
##423DD4	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD8

Deuteranopia (green-blind)

#004FD1

Tritanopia (blue-blind)

#006784

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #423dd4;
/* rgb */ color: rgb(66, 61, 212);
/* oklch */ color: oklch(47.3% 0.222 275.2);

Tailwind

colors: {
  custom: {
    50: '#8a74e3',
    500: '#423dd4',
    950: '#000000',
  },
}

SCSS

$custom: #423dd4;
$custom-light: #8a74e3;
$custom-dark: #000000;

JSON

{
  "hex": "#423dd4",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 212
  },
  "hsl": {
    "h": 241.987,
    "s": 63.713,
    "l": 53.529
  },
  "oklch": {
    "l": 0.47294,
    "c": 0.2218,
    "h": 275.2
  },
  "luminance": 0.09249
}

Semantic roles & 50–950 ramp

primary

#423DD4

secondary

#D5D796

accent

#E741E1

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #423DD4

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

Preview Lab → · Contrast checker → · Palette generator →