#423FBD#423FBD

#423FBD is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.4% C 0.191 H 276.7°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#423FBD
RGB	rgb(66, 63, 189)
HSL	hsl(241, 50%, 49%)
HSV	hsv(241, 67%, 74%)
CMYK	cmyk(65.1%, 66.7%, 0%, 25.9%)
CIE-LAB	lab(34.77, 40.12, -65.78)
CIE-LCH	lch(34.77, 77.05, 301.38°)
OKLab	oklab(45.44% 0.0222 -0.1898)
OKLCH	oklch(45.44% 0.191 276.7)
XYZ	xyz(13.2066, 8.3863, 49.0570)
Luminance	0.0839 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.19

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423FBD #BABD3F

analogous

#3F7BBD #423FBD #813FBD

triadic

#423FBD #BD423F #3FBD42

tetradic

#423FBD #BD3F7B #BABD3F #3FBD81

square

#423FBD #BD3F7B #BABD3F #3FBD81

split-complementary

#423FBD #BD813F #7BBD3F

monochromatic

#222061 #32308F #423FBD #6E6BCE #9B99DD

Accessibility & contrast

On white

7.84

#423FBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#423FBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423FBD

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FBD	#FFFFFF	#000000	##FFFFFF
##423FBD	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C1

Deuteranopia (green-blind)

#004CBB

Tritanopia (blue-blind)

#006078

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #423fbd;
/* rgb */ color: rgb(66, 63, 189);
/* oklch */ color: oklch(45.4% 0.191 276.7);

Tailwind

colors: {
  custom: {
    50: '#8575d2',
    500: '#423fbd',
    950: '#000000',
  },
}

SCSS

$custom: #423fbd;
$custom-light: #8575d2;
$custom-dark: #000000;

JSON

{
  "hex": "#423fbd",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 189
  },
  "hsl": {
    "h": 241.429,
    "s": 50,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45443,
    "c": 0.19107,
    "h": 276.7
  },
  "luminance": 0.08387
}

Semantic roles & 50–950 ramp

primary

#423FBD

secondary

#C8C98F

accent

#DA4ED6

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #423FBD

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

Preview Lab → · Contrast checker → · Palette generator →