#423AC8#423AC8

#423AC8 is a mid, highly saturated blue. Relative luminance 0.084; OKLCH L 45.7% C 0.210 H 276.6°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#423AC8
RGB	rgb(66, 58, 200)
HSL	hsl(243, 56%, 51%)
HSV	hsv(243, 71%, 78%)
CMYK	cmyk(67%, 71%, 0%, 21.6%)
CIE-LAB	lab(34.71, 46.63, -72.33)
CIE-LCH	lch(34.71, 86.06, 302.81°)
OKLab	oklab(45.7% 0.0241 -0.2089)
OKLCH	oklch(45.7% 0.21 276.6)
XYZ	xyz(14.1817, 8.3532, 55.4974)
Luminance	0.0835 (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

#423AC8 #C0C83A

analogous

#3A79C8 #423AC8 #893AC8

triadic

#423AC8 #C8423A #3AC842

tetradic

#423AC8 #C83A79 #C0C83A #3AC889

square

#423AC8 #C83A79 #C0C83A #3AC889

split-complementary

#423AC8 #C8893A #79C83A

monochromatic

#221E6A #312B9A #423AC8 #706AD5 #9E9AE3

Accessibility & contrast

On white

7.86

#423AC8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#423AC8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423AC8

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423AC8	#FFFFFF	#000000	##FFFFFF
##423AC8	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058CC

Deuteranopia (green-blind)

#004BC5

Tritanopia (blue-blind)

#00617D

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #423ac8;
/* rgb */ color: rgb(66, 58, 200);
/* oklch */ color: oklch(45.7% 0.210 276.6);

Tailwind

colors: {
  custom: {
    50: '#8872da',
    500: '#423ac8',
    950: '#000000',
  },
}

SCSS

$custom: #423ac8;
$custom-light: #8872da;
$custom-dark: #000000;

JSON

{
  "hex": "#423ac8",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 200
  },
  "hsl": {
    "h": 243.38,
    "s": 56.349,
    "l": 50.588
  },
  "oklch": {
    "l": 0.45701,
    "c": 0.21032,
    "h": 276.6
  },
  "luminance": 0.08354
}

Semantic roles & 50–950 ramp

primary

#423AC8

secondary

#CBCE8F

accent

#E048D7

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423AC8

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

Preview Lab → · Contrast checker → · Palette generator →