#424FC7#424FC7

#424FC7 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 49.1% C 0.185 H 272.8°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#424FC7
RGB	rgb(66, 79, 199)
HSL	hsl(234, 54%, 52%)
HSV	hsv(234, 67%, 78%)
CMYK	cmyk(66.8%, 60.3%, 0%, 22%)
CIE-LAB	lab(39.36, 33.64, -64.13)
CIE-LCH	lch(39.36, 72.41, 297.68°)
OKLab	oklab(49.06% 0.009 -0.1848)
OKLCH	oklch(49.06% 0.185 272.8)
XYZ	xyz(15.3481, 10.8723, 55.3115)
Luminance	0.1087 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424FC7 #C7BA42

analogous

#4292C7 #424FC7 #7742C7

triadic

#424FC7 #C7424F #4FC742

tetradic

#424FC7 #C74292 #C7BA42 #42C777

square

#424FC7 #C74292 #C7BA42 #42C777

split-complementary

#424FC7 #C77742 #92C742

monochromatic

#21286E #2F399D #424FC7 #717BD5 #A0A7E3

Accessibility & contrast

On white

6.61

#424FC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#424FC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424FC7

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424FC7	#FFFFFF	#000000	##FFFFFF
##424FC7	1.00	6.61	3.17	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063CB

Deuteranopia (green-blind)

#0057C5

Tritanopia (blue-blind)

#006D83

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #424fc7;
/* rgb */ color: rgb(66, 79, 199);
/* oklch */ color: oklch(49.1% 0.185 272.8);

Tailwind

colors: {
  custom: {
    50: '#8680d9',
    500: '#424fc7',
    950: '#000000',
  },
}

SCSS

$custom: #424fc7;
$custom-light: #8680d9;
$custom-dark: #000000;

JSON

{
  "hex": "#424fc7",
  "rgb": {
    "r": 66,
    "g": 79,
    "b": 199
  },
  "hsl": {
    "h": 234.135,
    "s": 54.286,
    "l": 51.961
  },
  "oklch": {
    "l": 0.49062,
    "c": 0.18504,
    "h": 272.8
  },
  "luminance": 0.10874
}

Semantic roles & 50–950 ramp

primary

#424FC7

secondary

#D0CA95

accent

#CF4ADE

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #424FC7

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

Preview Lab → · Contrast checker → · Palette generator →