#424ECC#424ECC

#424ECC is a mid, vivid blue. Relative luminance 0.110; OKLCH L 49.3% C 0.193 H 272.9°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#424ECC
RGB	rgb(66, 78, 204)
HSL	hsl(235, 58%, 53%)
HSV	hsv(235, 68%, 80%)
CMYK	cmyk(67.6%, 61.8%, 0%, 20%)
CIE-LAB	lab(39.52, 35.99, -66.77)
CIE-LCH	lch(39.52, 75.85, 298.33°)
OKLab	oklab(49.3% 0.0097 -0.1926)
OKLCH	oklch(49.3% 0.193 272.9)
XYZ	xyz(15.8666, 10.9652, 58.3954)
Luminance	0.1097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.85

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424ECC #CCC042

analogous

#4293CC #424ECC #7B42CC

triadic

#424ECC #CC424E #4ECC42

tetradic

#424ECC #CC4293 #CCC042 #42CC7B

square

#424ECC #CC4293 #CCC042 #42CC7B

split-complementary

#424ECC #CC7B42 #93CC42

monochromatic

#1F2774 #2C37A4 #424ECC #727BD9 #A2A8E6

Accessibility & contrast

On white

6.58

#424ECC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#424ECC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424ECC

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424ECC	#FFFFFF	#000000	##FFFFFF
##424ECC	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063D0

Deuteranopia (green-blind)

#0057CA

Tritanopia (blue-blind)

#006E85

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #424ecc;
/* rgb */ color: rgb(66, 78, 204);
/* oklch */ color: oklch(49.3% 0.193 272.9);

Tailwind

colors: {
  custom: {
    50: '#877fdd',
    500: '#424ecc',
    950: '#000000',
  },
}

SCSS

$custom: #424ecc;
$custom-light: #877fdd;
$custom-dark: #000000;

JSON

{
  "hex": "#424ecc",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 204
  },
  "hsl": {
    "h": 234.783,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.49302,
    "c": 0.19283,
    "h": 272.9
  },
  "luminance": 0.10967
}

Semantic roles & 50–950 ramp

primary

#424ECC

secondary

#D3CE97

accent

#D347E1

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #424ECC

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

Preview Lab → · Contrast checker → · Palette generator →