#424ECB#424ECB

#424ECB is a mid, vivid blue. Relative luminance 0.109; OKLCH L 49.2% C 0.192 H 272.9°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#424ECB
RGB	rgb(66, 78, 203)
HSL	hsl(235, 57%, 53%)
HSV	hsv(235, 67%, 80%)
CMYK	cmyk(67.5%, 61.6%, 0%, 20.4%)
CIE-LAB	lab(39.44, 35.64, -66.32)
CIE-LCH	lch(39.44, 75.29, 298.26°)
OKLab	oklab(49.22% 0.0097 -0.1913)
OKLCH	oklch(49.22% 0.192 272.9)
XYZ	xyz(15.7470, 10.9174, 57.7657)
Luminance	0.1092 (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

#424ECB #CBBF42

analogous

#4292CB #424ECB #7B42CB

triadic

#424ECB #CB424E #4ECB42

tetradic

#424ECB #CB4292 #CBBF42 #42CB7B

square

#424ECB #CB4292 #CBBF42 #42CB7B

split-complementary

#424ECB #CB7B42 #92CB42

monochromatic

#202773 #2D37A3 #424ECB #727BD8 #A2A8E5

Accessibility & contrast

On white

6.60

#424ECB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#424ECB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424ECB

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424ECB	#FFFFFF	#000000	##FFFFFF
##424ECB	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063CF

Deuteranopia (green-blind)

#0057C9

Tritanopia (blue-blind)

#006E85

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #424ecb;
/* rgb */ color: rgb(66, 78, 203);
/* oklch */ color: oklch(49.2% 0.192 272.9);

Tailwind

colors: {
  custom: {
    50: '#877fdc',
    500: '#424ecb',
    950: '#000000',
  },
}

SCSS

$custom: #424ecb;
$custom-light: #877fdc;
$custom-dark: #000000;

JSON

{
  "hex": "#424ecb",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 203
  },
  "hsl": {
    "h": 234.745,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.49218,
    "c": 0.19152,
    "h": 272.9
  },
  "luminance": 0.10919
}

Semantic roles & 50–950 ramp

primary

#424ECB

secondary

#D2CD97

accent

#D348E0

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #424ECB

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

Preview Lab → · Contrast checker → · Palette generator →