#423FAE#423FAE

#423FAE is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.1% C 0.172 H 277.9°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#423FAE
RGB	rgb(66, 63, 174)
HSL	hsl(242, 47%, 46%)
HSV	hsv(242, 64%, 68%)
CMYK	cmyk(62.1%, 63.8%, 0%, 31.8%)
CIE-LAB	lab(33.50, 35.11, -58.99)
CIE-LCH	lch(33.50, 68.65, 300.76°)
OKLab	oklab(44.12% 0.0236 -0.1699)
OKLCH	oklch(44.12% 0.172 277.9)
XYZ	xyz(11.6618, 7.7684, 40.9211)
Luminance	0.0777 (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

#423FAE #ABAE3F

analogous

#3F74AE #423FAE #7A3FAE

triadic

#423FAE #AE423F #3FAE42

tetradic

#423FAE #AE3F74 #ABAE3F #3FAE7A

square

#423FAE #AE3F74 #ABAE3F #3FAE7A

split-complementary

#423FAE #AE7A3F #74AE3F

monochromatic

#201E54 #312F81 #423FAE #6664C7 #9290D7

Accessibility & contrast

On white

8.22

#423FAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#423FAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423FAE

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FAE	#FFFFFF	#000000	##FFFFFF
##423FAE	1.00	8.22	2.55	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B2

Deuteranopia (green-blind)

#004AAC

Tritanopia (blue-blind)

#005B70

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #423fae;
/* rgb */ color: rgb(66, 63, 174);
/* oklch */ color: oklch(44.1% 0.172 277.9);

Tailwind

colors: {
  custom: {
    50: '#8274c7',
    500: '#423fae',
    950: '#000000',
  },
}

SCSS

$custom: #423fae;
$custom-light: #8274c7;
$custom-dark: #000000;

JSON

{
  "hex": "#423fae",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 174
  },
  "hsl": {
    "h": 241.622,
    "s": 46.835,
    "l": 46.471
  },
  "oklch": {
    "l": 0.44117,
    "c": 0.1715,
    "h": 277.9
  },
  "luminance": 0.07769
}

Semantic roles & 50–950 ramp

primary

#423FAE

secondary

#C0C287

accent

#D651D3

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #423FAE

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

Preview Lab → · Contrast checker → · Palette generator →