#424CB7#424CB7

#424CB7 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 47.2% C 0.167 H 274.0°. Best body text is #FFFFFF at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#424CB7
RGB	rgb(66, 76, 183)
HSL	hsl(235, 47%, 49%)
HSV	hsv(235, 64%, 72%)
CMYK	cmyk(63.9%, 58.5%, 0%, 28.2%)
CIE-LAB	lab(37.38, 29.98, -58.00)
CIE-LCH	lch(37.38, 65.29, 297.34°)
OKLab	oklab(47.2% 0.0118 -0.1668)
OKLCH	oklch(47.2% 0.167 274)
XYZ	xyz(13.3756, 9.7449, 45.9666)
Luminance	0.0975 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424CB7 #B7AD42

analogous

#4287B7 #424CB7 #7342B7

triadic

#424CB7 #B7424C #4CB742

tetradic

#424CB7 #B74287 #B7AD42 #42B773

square

#424CB7 #B74287 #B7AD42 #42B773

split-complementary

#424CB7 #B77342 #87B742

monochromatic

#22275D #32398A #424CB7 #6C74CA #999FDA

Accessibility & contrast

On white

7.12

#424CB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#424CB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424CB7

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424CB7	#FFFFFF	#000000	##FFFFFF
##424CB7	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)

#005DBB

Deuteranopia (green-blind)

#0053B5

Tritanopia (blue-blind)

#00667A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #424cb7;
/* rgb */ color: rgb(66, 76, 183);
/* oklch */ color: oklch(47.2% 0.167 274.0);

Tailwind

colors: {
  custom: {
    50: '#837ecd',
    500: '#424cb7',
    950: '#000000',
  },
}

SCSS

$custom: #424cb7;
$custom-light: #837ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#424cb7",
  "rgb": {
    "r": 66,
    "g": 76,
    "b": 183
  },
  "hsl": {
    "h": 234.872,
    "s": 46.988,
    "l": 48.824
  },
  "oklch": {
    "l": 0.47203,
    "c": 0.16726,
    "h": 274
  },
  "luminance": 0.09746
}

Semantic roles & 50–950 ramp

primary

#424CB7

secondary

#C6C18F

accent

#CB51D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #424CB7

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

Preview Lab → · Contrast checker → · Palette generator →