#424FC5#424FC5

#424FC5 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.9% C 0.182 H 272.9°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#424FC5
RGB	rgb(66, 79, 197)
HSL	hsl(234, 53%, 52%)
HSV	hsv(234, 66%, 77%)
CMYK	cmyk(66.5%, 59.9%, 0%, 22.7%)
CIE-LAB	lab(39.21, 32.94, -63.22)
CIE-LCH	lch(39.21, 71.29, 297.52°)
OKLab	oklab(48.9% 0.0091 -0.1822)
OKLCH	oklch(48.9% 0.182 272.9)
XYZ	xyz(15.1174, 10.7801, 54.0966)
Luminance	0.1078 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424FC5 #C5B842

analogous

#4291C5 #424FC5 #7742C5

triadic

#424FC5 #C5424F #4FC542

tetradic

#424FC5 #C54291 #C5B842 #42C577

square

#424FC5 #C54291 #C5B842 #42C577

split-complementary

#424FC5 #C57742 #91C542

monochromatic

#21286C #2F3A9A #424FC5 #717BD3 #A0A6E2

Accessibility & contrast

On white

6.65

#424FC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#424FC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424FC5

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424FC5	#FFFFFF	#000000	##FFFFFF
##424FC5	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C9

Deuteranopia (green-blind)

#0057C3

Tritanopia (blue-blind)

#006C82

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #424fc5;
/* rgb */ color: rgb(66, 79, 197);
/* oklch */ color: oklch(48.9% 0.182 272.9);

Tailwind

colors: {
  custom: {
    50: '#8680d7',
    500: '#424fc5',
    950: '#000000',
  },
}

SCSS

$custom: #424fc5;
$custom-light: #8680d7;
$custom-dark: #000000;

JSON

{
  "hex": "#424fc5",
  "rgb": {
    "r": 66,
    "g": 79,
    "b": 197
  },
  "hsl": {
    "h": 234.046,
    "s": 53.036,
    "l": 51.569
  },
  "oklch": {
    "l": 0.48897,
    "c": 0.18239,
    "h": 272.9
  },
  "luminance": 0.10781
}

Semantic roles & 50–950 ramp

primary

#424FC5

secondary

#CEC895

accent

#CE4BDC

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #424FC5

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

Preview Lab → · Contrast checker → · Palette generator →