#424DCF#424DCF

#424DCF is a mid, vivid blue. Relative luminance 0.110; OKLCH L 49.4% C 0.198 H 273.0°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#424DCF
RGB	rgb(66, 77, 207)
HSL	hsl(235, 59%, 54%)
HSV	hsv(235, 68%, 81%)
CMYK	cmyk(68.1%, 62.8%, 0%, 18.8%)
CIE-LAB	lab(39.53, 37.64, -68.49)
CIE-LCH	lch(39.53, 78.15, 298.79°)
OKLab	oklab(49.38% 0.0103 -0.1976)
OKLCH	oklch(49.38% 0.198 273)
XYZ	xyz(16.1594, 10.9695, 60.2851)
Luminance	0.1097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.57

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424DCF #CFC442

analogous

#4293CF #424DCF #7D42CF

triadic

#424DCF #CF424D #4DCF42

tetradic

#424DCF #CF4293 #CFC442 #42CF7D

square

#424DCF #CF4293 #CFC442 #42CF7D

split-complementary

#424DCF #CF7D42 #93CF42

monochromatic

#1F2578 #2B35A9 #424DCF #737BDB #A4A9E8

Accessibility & contrast

On white

6.57

#424DCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#424DCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424DCF

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424DCF	#FFFFFF	#000000	##FFFFFF
##424DCF	1.00	6.57	3.19	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064D3

Deuteranopia (green-blind)

#0057CC

Tritanopia (blue-blind)

#006E87

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #424dcf;
/* rgb */ color: rgb(66, 77, 207);
/* oklch */ color: oklch(49.4% 0.198 273.0);

Tailwind

colors: {
  custom: {
    50: '#887fdf',
    500: '#424dcf',
    950: '#000000',
  },
}

SCSS

$custom: #424dcf;
$custom-light: #887fdf;
$custom-dark: #000000;

JSON

{
  "hex": "#424dcf",
  "rgb": {
    "r": 66,
    "g": 77,
    "b": 207
  },
  "hsl": {
    "h": 235.319,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.49384,
    "c": 0.19791,
    "h": 273
  },
  "luminance": 0.10971
}

Semantic roles & 50–950 ramp

primary

#424DCF

secondary

#D5D098

accent

#D645E3

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #424DCF

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

Preview Lab → · Contrast checker → · Palette generator →