#424EB0#424EB0

#424EB0 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 47.0% C 0.155 H 273.6°. Best body text is #FFFFFF at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#424EB0
RGB	rgb(66, 78, 176)
HSL	hsl(233, 45%, 47%)
HSV	hsv(233, 63%, 69%)
CMYK	cmyk(62.5%, 55.7%, 0%, 31%)
CIE-LAB	lab(37.37, 26.27, -53.88)
CIE-LCH	lch(37.37, 59.94, 295.99°)
OKLab	oklab(47.03% 0.0097 -0.1547)
OKLCH	oklch(47.03% 0.155 273.6)
XYZ	xyz(12.8050, 9.7406, 42.2712)
Luminance	0.0974 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424EB0 #B0A442

analogous

#4285B0 #424EB0 #6D42B0

triadic

#424EB0 #B0424E #4EB042

tetradic

#424EB0 #B04285 #B0A442 #42B06D

square

#424EB0 #B04285 #B0A442 #42B06D

split-complementary

#424EB0 #B06D42 #85B042

monochromatic

#212757 #313A83 #424EB0 #6973C7 #959CD7

Accessibility & contrast

On white

7.12

#424EB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#424EB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424EB0

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424EB0	#FFFFFF	#000000	##FFFFFF
##424EB0	1.00	7.12	2.95	7.12
#FFFFFF	7.12	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB3

Deuteranopia (green-blind)

#0053AE

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #424eb0;
/* rgb */ color: rgb(66, 78, 176);
/* oklch */ color: oklch(47.0% 0.155 273.6);

Tailwind

colors: {
  custom: {
    50: '#827fc8',
    500: '#424eb0',
    950: '#000000',
  },
}

SCSS

$custom: #424eb0;
$custom-light: #827fc8;
$custom-dark: #000000;

JSON

{
  "hex": "#424eb0",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 176
  },
  "hsl": {
    "h": 233.455,
    "s": 45.455,
    "l": 47.451
  },
  "oklch": {
    "l": 0.47034,
    "c": 0.15502,
    "h": 273.6
  },
  "luminance": 0.09742
}

Semantic roles & 50–950 ramp

primary

#424EB0

secondary

#C3BD8B

accent

#C753D5

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #424EB0

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

Preview Lab → · Contrast checker → · Palette generator →