#423CA3#423CA3

#423CA3 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.7% C 0.161 H 279.7°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#423CA3
RGB	rgb(66, 60, 163)
HSL	hsl(243, 46%, 44%)
HSV	hsv(243, 63%, 64%)
CMYK	cmyk(59.5%, 63.2%, 0%, 36.1%)
CIE-LAB	lab(31.88, 33.30, -55.03)
CIE-LCH	lch(31.88, 64.32, 301.18°)
OKLab	oklab(42.66% 0.0271 -0.1582)
OKLCH	oklch(42.66% 0.161 279.7)
XYZ	xyz(10.4714, 7.0336, 35.4490)
Luminance	0.0703 (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

#423CA3 #9DA33C

analogous

#3C69A3 #423CA3 #753CA3

triadic

#423CA3 #A3423C #3CA342

tetradic

#423CA3 #A33C69 #9DA33C #3CA375

square

#423CA3 #A33C69 #9DA33C #3CA375

split-complementary

#423CA3 #A3753C #69A33C

monochromatic

#1E1B4A #302C76 #423CA3 #605AC2 #8B87D3

Accessibility & contrast

On white

8.73

#423CA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#423CA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CA3

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CA3	#FFFFFF	#000000	##FFFFFF
##423CA3	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA6

Deuteranopia (green-blind)

#0047A1

Tritanopia (blue-blind)

#00556A

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #423ca3;
/* rgb */ color: rgb(66, 60, 163);
/* oklch */ color: oklch(42.7% 0.161 279.7);

Tailwind

colors: {
  custom: {
    50: '#8072bf',
    500: '#423ca3',
    950: '#000000',
  },
}

SCSS

$custom: #423ca3;
$custom-light: #8072bf;
$custom-dark: #000000;

JSON

{
  "hex": "#423ca3",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 163
  },
  "hsl": {
    "h": 243.495,
    "s": 46.188,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42657,
    "c": 0.16055,
    "h": 279.7
  },
  "luminance": 0.07034
}

Semantic roles & 50–950 ramp

primary

#423CA3

secondary

#B9BD7E

accent

#D652CE

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #423CA3

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

Preview Lab → · Contrast checker → · Palette generator →