#423BD8#423BD8

#423BD8 is a mid, highly saturated blue. Relative luminance 0.092; OKLCH L 47.4% C 0.229 H 275.2°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#423BD8
RGB	rgb(66, 59, 216)
HSL	hsl(243, 67%, 54%)
HSV	hsv(243, 73%, 85%)
CMYK	cmyk(69.4%, 72.7%, 0%, 15.3%)
CIE-LAB	lab(36.45, 51.17, -78.73)
CIE-LCH	lch(36.45, 93.90, 303.02°)
OKLab	oklab(47.4% 0.0207 -0.2276)
OKLCH	oklch(47.4% 0.229 275.2)
XYZ	xyz(16.2013, 9.2425, 65.8826)
Luminance	0.0924 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.63

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423BD8 #D1D83B

analogous

#3B83D8 #423BD8 #913BD8

triadic

#423BD8 #D8423B #3BD842

tetradic

#423BD8 #D83B83 #D1D83B #3BD891

square

#423BD8 #D83B83 #D1D83B #3BD891

split-complementary

#423BD8 #D8913B #83D83B

monochromatic

#1E197F #2A23B2 #423BD8 #736EE2 #A4A1EC

Accessibility & contrast

On white

7.37

#423BD8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#423BD8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423BD8

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423BD8	#FFFFFF	#000000	##FFFFFF
##423BD8	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)

#005DDD

Deuteranopia (green-blind)

#004FD5

Tritanopia (blue-blind)

#006886

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #423bd8;
/* rgb */ color: rgb(66, 59, 216);
/* oklch */ color: oklch(47.4% 0.229 275.2);

Tailwind

colors: {
  custom: {
    50: '#8b73e5',
    500: '#423bd8',
    950: '#000000',
  },
}

SCSS

$custom: #423bd8;
$custom-light: #8b73e5;
$custom-dark: #000000;

JSON

{
  "hex": "#423bd8",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 216
  },
  "hsl": {
    "h": 242.675,
    "s": 66.809,
    "l": 53.922
  },
  "oklch": {
    "l": 0.47403,
    "c": 0.22857,
    "h": 275.2
  },
  "luminance": 0.09244
}

Semantic roles & 50–950 ramp

primary

#423BD8

secondary

#D6D996

accent

#EA3EE2

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #423BD8

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

Preview Lab → · Contrast checker → · Palette generator →