#423BC3#423BC3

#423BC3 is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.4% C 0.203 H 276.9°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#423BC3
RGB	rgb(66, 59, 195)
HSL	hsl(243, 54%, 50%)
HSV	hsv(243, 70%, 76%)
CMYK	cmyk(66.2%, 69.7%, 0%, 23.5%)
CIE-LAB	lab(34.45, 44.44, -69.84)
CIE-LCH	lch(34.45, 82.78, 302.47°)
OKLab	oklab(45.37% 0.0242 -0.2016)
OKLCH	oklch(45.37% 0.203 276.9)
XYZ	xyz(13.6578, 8.2251, 52.4870)
Luminance	0.0823 (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

#423BC3 #BCC33B

analogous

#3B78C3 #423BC3 #863BC3

triadic

#423BC3 #C3423B #3BC342

tetradic

#423BC3 #C33B78 #BCC33B #3BC386

square

#423BC3 #C33B78 #BCC33B #3BC386

split-complementary

#423BC3 #C3863B #78C33B

monochromatic

#221F65 #322D94 #423BC3 #6F69D2 #9C98E0

Accessibility & contrast

On white

7.94

#423BC3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#423BC3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423BC3

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423BC3	#FFFFFF	#000000	##FFFFFF
##423BC3	1.00	7.94	2.65	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C7

Deuteranopia (green-blind)

#004BC0

Tritanopia (blue-blind)

#00607B

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #423bc3;
/* rgb */ color: rgb(66, 59, 195);
/* oklch */ color: oklch(45.4% 0.203 276.9);

Tailwind

colors: {
  custom: {
    50: '#8772d6',
    500: '#423bc3',
    950: '#000000',
  },
}

SCSS

$custom: #423bc3;
$custom-light: #8772d6;
$custom-dark: #000000;

JSON

{
  "hex": "#423bc3",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 195
  },
  "hsl": {
    "h": 243.088,
    "s": 53.543,
    "l": 49.804
  },
  "oklch": {
    "l": 0.45372,
    "c": 0.2031,
    "h": 276.9
  },
  "luminance": 0.08226
}

Semantic roles & 50–950 ramp

primary

#423BC3

secondary

#C9CC8E

accent

#DD4BD5

background

#F9F7FD

surface

#F1EDFA

border

#CBC8D3

text

#0D0814

muted

#7E7B83

Preview Lab

Preview with #423BC3

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

Preview Lab → · Contrast checker → · Palette generator →