#424ECF#424ECF

#424ECF is a mid, vivid blue. Relative luminance 0.111; OKLCH L 49.6% C 0.197 H 272.8°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#424ECF
RGB	rgb(66, 78, 207)
HSL	hsl(235, 59%, 54%)
HSV	hsv(235, 68%, 81%)
CMYK	cmyk(68.1%, 62.3%, 0%, 18.8%)
CIE-LAB	lab(39.77, 37.02, -68.10)
CIE-LCH	lch(39.77, 77.51, 298.53°)
OKLab	oklab(49.56% 0.0096 -0.1965)
OKLCH	oklch(49.56% 0.197 272.8)
XYZ	xyz(16.2299, 11.1105, 60.3086)
Luminance	0.1111 (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

#424ECF #CFC342

analogous

#4294CF #424ECF #7C42CF

triadic

#424ECF #CF424E #4ECF42

tetradic

#424ECF #CF4294 #CFC342 #42CF7C

square

#424ECF #CF4294 #CFC342 #42CF7C

split-complementary

#424ECF #CF7C42 #94CF42

monochromatic

#1F2678 #2B36A9 #424ECF #737CDB #A4A9E8

Accessibility & contrast

On white

6.52

#424ECF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#424ECF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424ECF

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424ECF	#FFFFFF	#000000	##FFFFFF
##424ECF	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)

#0064D3

Deuteranopia (green-blind)

#0057CD

Tritanopia (blue-blind)

#006F87

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #424ecf;
/* rgb */ color: rgb(66, 78, 207);
/* oklch */ color: oklch(49.6% 0.197 272.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#424ecf",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 207
  },
  "hsl": {
    "h": 234.894,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.49558,
    "c": 0.19673,
    "h": 272.8
  },
  "luminance": 0.11112
}

Semantic roles & 50–950 ramp

primary

#424ECF

secondary

#D5CF98

accent

#D545E3

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #424ECF

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

Preview Lab → · Contrast checker → · Palette generator →