#424FCC#424FCC

#424FCC is a mid, vivid blue. Relative luminance 0.111; OKLCH L 49.5% C 0.192 H 272.7°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#424FCC
RGB	rgb(66, 79, 204)
HSL	hsl(234, 58%, 53%)
HSV	hsv(234, 68%, 80%)
CMYK	cmyk(67.6%, 61.3%, 0%, 20%)
CIE-LAB	lab(39.76, 35.37, -66.37)
CIE-LCH	lch(39.76, 75.21, 298.05°)
OKLab	oklab(49.48% 0.0089 -0.1914)
OKLCH	oklch(49.48% 0.192 272.7)
XYZ	xyz(15.9382, 11.1084, 58.4192)
Luminance	0.1111 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.14

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424FCC #CCBF42

analogous

#4294CC #424FCC #7A42CC

triadic

#424FCC #CC424F #4FCC42

tetradic

#424FCC #CC4294 #CCBF42 #42CC7A

square

#424FCC #CC4294 #CCBF42 #42CC7A

split-complementary

#424FCC #CC7A42 #94CC42

monochromatic

#1F2774 #2C38A4 #424FCC #727CD9 #A2A9E6

Accessibility & contrast

On white

6.52

#424FCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#424FCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424FCC

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424FCC	#FFFFFF	#000000	##FFFFFF
##424FCC	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064D0

Deuteranopia (green-blind)

#0058CA

Tritanopia (blue-blind)

#006F86

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #424fcc;
/* rgb */ color: rgb(66, 79, 204);
/* oklch */ color: oklch(49.5% 0.192 272.7);

Tailwind

colors: {
  custom: {
    50: '#8780dd',
    500: '#424fcc',
    950: '#000000',
  },
}

SCSS

$custom: #424fcc;
$custom-light: #8780dd;
$custom-dark: #000000;

JSON

{
  "hex": "#424fcc",
  "rgb": {
    "r": 66,
    "g": 79,
    "b": 204
  },
  "hsl": {
    "h": 234.348,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.4948,
    "c": 0.19163,
    "h": 272.7
  },
  "luminance": 0.1111
}

Semantic roles & 50–950 ramp

primary

#424FCC

secondary

#D3CD97

accent

#D247E1

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #424FCC

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

Preview Lab → · Contrast checker → · Palette generator →