#424FC8#424FC8

#424FC8 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 49.1% C 0.186 H 272.8°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#424FC8
RGB	rgb(66, 79, 200)
HSL	hsl(234, 55%, 52%)
HSV	hsv(234, 67%, 78%)
CMYK	cmyk(67%, 60.5%, 0%, 21.6%)
CIE-LAB	lab(39.44, 33.98, -64.58)
CIE-LCH	lch(39.44, 72.97, 297.75°)
OKLab	oklab(49.15% 0.009 -0.1861)
OKLCH	oklch(49.15% 0.186 272.8)
XYZ	xyz(15.4646, 10.9189, 55.9250)
Luminance	0.1092 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424FC8 #C8BB42

analogous

#4292C8 #424FC8 #7842C8

triadic

#424FC8 #C8424F #4FC842

tetradic

#424FC8 #C84292 #C8BB42 #42C878

square

#424FC8 #C84292 #C8BB42 #42C878

split-complementary

#424FC8 #C87842 #92C842

monochromatic

#20286F #2E399F #424FC8 #717BD6 #A1A7E4

Accessibility & contrast

On white

6.60

#424FC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#424FC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424FC8

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424FC8	#FFFFFF	#000000	##FFFFFF
##424FC8	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)

#0063CC

Deuteranopia (green-blind)

#0057C6

Tritanopia (blue-blind)

#006D84

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #424fc8;
/* rgb */ color: rgb(66, 79, 200);
/* oklch */ color: oklch(49.1% 0.186 272.8);

Tailwind

colors: {
  custom: {
    50: '#8680da',
    500: '#424fc8',
    950: '#000000',
  },
}

SCSS

$custom: #424fc8;
$custom-light: #8680da;
$custom-dark: #000000;

JSON

{
  "hex": "#424fc8",
  "rgb": {
    "r": 66,
    "g": 79,
    "b": 200
  },
  "hsl": {
    "h": 234.179,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.49145,
    "c": 0.18637,
    "h": 272.8
  },
  "luminance": 0.1092
}

Semantic roles & 50–950 ramp

primary

#424FC8

secondary

#D0CA96

accent

#D04ADE

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #424FC8

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

Preview Lab → · Contrast checker → · Palette generator →