#423BD4#423BD4

#423BD4 is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 47.0% C 0.224 H 275.5°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#423BD4
RGB	rgb(66, 59, 212)
HSL	hsl(243, 64%, 53%)
HSV	hsv(243, 72%, 83%)
CMYK	cmyk(68.9%, 72.2%, 0%, 16.9%)
CIE-LAB	lab(36.06, 49.90, -77.07)
CIE-LCH	lch(36.06, 91.81, 302.92°)
OKLab	oklab(47.01% 0.0214 -0.2228)
OKLCH	oklch(47.01% 0.224 275.5)
XYZ	xyz(15.6905, 9.0382, 63.1922)
Luminance	0.0904 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.48

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423BD4 #CDD43B

analogous

#3B80D4 #423BD4 #8E3BD4

triadic

#423BD4 #D4423B #3BD442

tetradic

#423BD4 #D43B80 #CDD43B #3BD48E

square

#423BD4 #D43B80 #CDD43B #3BD48E

split-complementary

#423BD4 #D48E3B #80D43B

monochromatic

#1F1B7A #2C26AC #423BD4 #726DDF #A39FEA

Accessibility & contrast

On white

7.48

#423BD4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#423BD4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423BD4

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423BD4	#FFFFFF	#000000	##FFFFFF
##423BD4	1.00	7.48	2.81	7.48
#FFFFFF	7.48	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CD9

Deuteranopia (green-blind)

#004ED1

Tritanopia (blue-blind)

#006684

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #423bd4;
/* rgb */ color: rgb(66, 59, 212);
/* oklch */ color: oklch(47.0% 0.224 275.5);

Tailwind

colors: {
  custom: {
    50: '#8a73e3',
    500: '#423bd4',
    950: '#000000',
  },
}

SCSS

$custom: #423bd4;
$custom-light: #8a73e3;
$custom-dark: #000000;

JSON

{
  "hex": "#423bd4",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 212
  },
  "hsl": {
    "h": 242.745,
    "s": 64.017,
    "l": 53.137
  },
  "oklch": {
    "l": 0.47009,
    "c": 0.22381,
    "h": 275.5
  },
  "luminance": 0.0904
}

Semantic roles & 50–950 ramp

primary

#423BD4

secondary

#D3D694

accent

#E741DF

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #423BD4

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

Preview Lab → · Contrast checker → · Palette generator →