#424DB7#424DB7

#424DB7 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.4% C 0.166 H 273.7°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#424DB7
RGB	rgb(66, 77, 183)
HSL	hsl(234, 47%, 49%)
HSV	hsv(234, 64%, 72%)
CMYK	cmyk(63.9%, 57.9%, 0%, 28.2%)
CIE-LAB	lab(37.63, 29.35, -57.59)
CIE-LCH	lch(37.63, 64.63, 297.00°)
OKLab	oklab(47.39% 0.0108 -0.1656)
OKLCH	oklch(47.39% 0.166 273.7)
XYZ	xyz(13.4451, 9.8838, 45.9898)
Luminance	0.0988 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424DB7 #B7AC42

analogous

#4288B7 #424DB7 #7242B7

triadic

#424DB7 #B7424D #4DB742

tetradic

#424DB7 #B74288 #B7AC42 #42B772

square

#424DB7 #B74288 #B7AC42 #42B772

split-complementary

#424DB7 #B77242 #88B742

monochromatic

#22275D #323A8A #424DB7 #6C75CA #999FDA

Accessibility & contrast

On white

7.05

#424DB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#424DB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424DB7

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424DB7	#FFFFFF	#000000	##FFFFFF
##424DB7	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EBB

Deuteranopia (green-blind)

#0054B5

Tritanopia (blue-blind)

#00677A

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #424db7;
/* rgb */ color: rgb(66, 77, 183);
/* oklch */ color: oklch(47.4% 0.166 273.7);

Tailwind

colors: {
  custom: {
    50: '#837ecd',
    500: '#424db7',
    950: '#000000',
  },
}

SCSS

$custom: #424db7;
$custom-light: #837ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#424db7",
  "rgb": {
    "r": 66,
    "g": 77,
    "b": 183
  },
  "hsl": {
    "h": 234.359,
    "s": 46.988,
    "l": 48.824
  },
  "oklch": {
    "l": 0.47391,
    "c": 0.16598,
    "h": 273.7
  },
  "luminance": 0.09885
}

Semantic roles & 50–950 ramp

primary

#424DB7

secondary

#C6C18F

accent

#CA51D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #424DB7

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

Preview Lab → · Contrast checker → · Palette generator →