#424CB4#424CB4

#424CB4 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 47.0% C 0.163 H 274.1°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#424CB4
RGB	rgb(66, 76, 180)
HSL	hsl(235, 46%, 48%)
HSV	hsv(235, 63%, 71%)
CMYK	cmyk(63.3%, 57.8%, 0%, 29.4%)
CIE-LAB	lab(37.15, 28.94, -56.60)
CIE-LCH	lch(37.15, 63.57, 297.08°)
OKLab	oklab(46.96% 0.0117 -0.1627)
OKLCH	oklch(46.96% 0.163 274.1)
XYZ	xyz(13.0667, 9.6213, 44.3397)
Luminance	0.0962 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424CB4 #B4AA42

analogous

#4285B4 #424CB4 #7142B4

triadic

#424CB4 #B4424C #4CB442

tetradic

#424CB4 #B44285 #B4AA42 #42B471

square

#424CB4 #B44285 #B4AA42 #42B471

split-complementary

#424CB4 #B47142 #85B442

monochromatic

#21265A #323987 #424CB4 #6B73C9 #979DD9

Accessibility & contrast

On white

7.18

#424CB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#424CB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424CB4

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424CB4	#FFFFFF	#000000	##FFFFFF
##424CB4	1.00	7.18	2.92	7.18
#FFFFFF	7.18	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB8

Deuteranopia (green-blind)

#0053B2

Tritanopia (blue-blind)

#006578

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #424cb4;
/* rgb */ color: rgb(66, 76, 180);
/* oklch */ color: oklch(47.0% 0.163 274.1);

Tailwind

colors: {
  custom: {
    50: '#827ecb',
    500: '#424cb4',
    950: '#000000',
  },
}

SCSS

$custom: #424cb4;
$custom-light: #827ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#424cb4",
  "rgb": {
    "r": 66,
    "g": 76,
    "b": 180
  },
  "hsl": {
    "h": 234.737,
    "s": 46.341,
    "l": 48.235
  },
  "oklch": {
    "l": 0.46964,
    "c": 0.16315,
    "h": 274.1
  },
  "luminance": 0.09622
}

Semantic roles & 50–950 ramp

primary

#424CB4

secondary

#C5C08D

accent

#CA52D6

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0913

muted

#7D7B82

Preview Lab

Preview with #424CB4

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

Preview Lab → · Contrast checker → · Palette generator →