#424CB3#424CB3

#424CB3 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.9% C 0.162 H 274.2°. Best body text is #FFFFFF at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#424CB3
RGB	rgb(66, 76, 179)
HSL	hsl(235, 46%, 48%)
HSV	hsv(235, 63%, 70%)
CMYK	cmyk(63.1%, 57.5%, 0%, 29.8%)
CIE-LAB	lab(37.08, 28.60, -56.13)
CIE-LCH	lch(37.08, 62.99, 297.00°)
OKLab	oklab(46.88% 0.0117 -0.1613)
OKLCH	oklch(46.88% 0.162 274.2)
XYZ	xyz(12.9652, 9.5807, 43.8051)
Luminance	0.0958 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424CB3 #B3A942

analogous

#4284B3 #424CB3 #7042B3

triadic

#424CB3 #B3424C #4CB342

tetradic

#424CB3 #B34284 #B3A942 #42B370

square

#424CB3 #B34284 #B3A942 #42B370

split-complementary

#424CB3 #B37042 #84B342

monochromatic

#21265A #323986 #424CB3 #6A72C8 #979DD9

Accessibility & contrast

On white

7.20

#424CB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#424CB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424CB3

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424CB3	#FFFFFF	#000000	##FFFFFF
##424CB3	1.00	7.20	2.92	7.20
#FFFFFF	7.20	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB6

Deuteranopia (green-blind)

#0052B1

Tritanopia (blue-blind)

#006578

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #424cb3;
/* rgb */ color: rgb(66, 76, 179);
/* oklch */ color: oklch(46.9% 0.162 274.2);

Tailwind

colors: {
  custom: {
    50: '#827eca',
    500: '#424cb3',
    950: '#000000',
  },
}

SCSS

$custom: #424cb3;
$custom-light: #827eca;
$custom-dark: #000000;

JSON

{
  "hex": "#424cb3",
  "rgb": {
    "r": 66,
    "g": 76,
    "b": 179
  },
  "hsl": {
    "h": 234.69,
    "s": 46.122,
    "l": 48.039
  },
  "oklch": {
    "l": 0.46884,
    "c": 0.16177,
    "h": 274.2
  },
  "luminance": 0.09582
}

Semantic roles & 50–950 ramp

primary

#424CB3

secondary

#C4BF8C

accent

#CA52D6

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0C0913

muted

#7D7B82

Preview Lab

Preview with #424CB3

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

Preview Lab → · Contrast checker → · Palette generator →