#424FD1#424FD1

#424FD1 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.9% C 0.198 H 272.5°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#424FD1
RGB	rgb(66, 79, 209)
HSL	hsl(235, 61%, 54%)
HSV	hsv(235, 68%, 82%)
CMYK	cmyk(68.4%, 62.2%, 0%, 18%)
CIE-LAB	lab(40.17, 37.09, -68.60)
CIE-LCH	lch(40.17, 77.98, 298.40°)
OKLab	oklab(49.9% 0.0087 -0.1979)
OKLCH	oklch(49.9% 0.198 272.5)
XYZ	xyz(16.5475, 11.3521, 61.6284)
Luminance	0.1135 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424FD1 #D1C442

analogous

#4297D1 #424FD1 #7D42D1

triadic

#424FD1 #D1424F #4FD142

tetradic

#424FD1 #D14297 #D1C442 #42D17D

square

#424FD1 #D14297 #D1C442 #42D17D

split-complementary

#424FD1 #D17D42 #97D142

monochromatic

#1E267B #2A36AC #424FD1 #737DDD #A4ABE9

Accessibility & contrast

On white

6.42

#424FD1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#424FD1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424FD1

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424FD1	#FFFFFF	#000000	##FFFFFF
##424FD1	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065D5

Deuteranopia (green-blind)

#0058CE

Tritanopia (blue-blind)

#007088

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #424fd1;
/* rgb */ color: rgb(66, 79, 209);
/* oklch */ color: oklch(49.9% 0.198 272.5);

Tailwind

colors: {
  custom: {
    50: '#8880e0',
    500: '#424fd1',
    950: '#000000',
  },
}

SCSS

$custom: #424fd1;
$custom-light: #8880e0;
$custom-dark: #000000;

JSON

{
  "hex": "#424fd1",
  "rgb": {
    "r": 66,
    "g": 79,
    "b": 209
  },
  "hsl": {
    "h": 234.545,
    "s": 60.851,
    "l": 53.922
  },
  "oklch": {
    "l": 0.49904,
    "c": 0.19814,
    "h": 272.5
  },
  "luminance": 0.11354
}

Semantic roles & 50–950 ramp

primary

#424FD1

secondary

#D6D099

accent

#D544E4

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #424FD1

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

Preview Lab → · Contrast checker → · Palette generator →