#424EB9#424EB9

#424EB9 is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.7% C 0.167 H 273.4°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#424EB9
RGB	rgb(66, 78, 185)
HSL	hsl(234, 47%, 49%)
HSV	hsv(234, 64%, 73%)
CMYK	cmyk(64.3%, 57.8%, 0%, 27.5%)
CIE-LAB	lab(38.04, 29.40, -58.11)
CIE-LCH	lch(38.04, 65.12, 296.84°)
OKLab	oklab(47.74% 0.01 -0.1671)
OKLCH	oklch(47.74% 0.167 273.4)
XYZ	xyz(13.7252, 10.1086, 47.1174)
Luminance	0.1011 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424EB9 #B9AD42

analogous

#4289B9 #424EB9 #7242B9

triadic

#424EB9 #B9424E #4EB942

tetradic

#424EB9 #B94289 #B9AD42 #42B972

square

#424EB9 #B94289 #B9AD42 #42B972

split-complementary

#424EB9 #B97242 #89B942

monochromatic

#22285F #323B8C #424EB9 #6D77CB #9AA1DB

Accessibility & contrast

On white

6.95

#424EB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#424EB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424EB9

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424EB9	#FFFFFF	#000000	##FFFFFF
##424EB9	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FBD

Deuteranopia (green-blind)

#0054B7

Tritanopia (blue-blind)

#00687C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #424eb9;
/* rgb */ color: rgb(66, 78, 185);
/* oklch */ color: oklch(47.7% 0.167 273.4);

Tailwind

colors: {
  custom: {
    50: '#837fcf',
    500: '#424eb9',
    950: '#000000',
  },
}

SCSS

$custom: #424eb9;
$custom-light: #837fcf;
$custom-dark: #000000;

JSON

{
  "hex": "#424eb9",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 185
  },
  "hsl": {
    "h": 233.95,
    "s": 47.41,
    "l": 49.216
  },
  "oklch": {
    "l": 0.47739,
    "c": 0.16745,
    "h": 273.4
  },
  "luminance": 0.1011
}

Semantic roles & 50–950 ramp

primary

#424EB9

secondary

#C7C290

accent

#C951D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #424EB9

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

Preview Lab → · Contrast checker → · Palette generator →