#4247D8#4247D8

#4247D8 is a mid, highly saturated blue. Relative luminance 0.106; OKLCH L 49.2% C 0.216 H 273.6°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#4247D8
RGB	rgb(66, 71, 216)
HSL	hsl(238, 66%, 55%)
HSV	hsv(238, 69%, 85%)
CMYK	cmyk(69.4%, 67.1%, 0%, 15.3%)
CIE-LAB	lab(38.93, 44.32, -74.64)
CIE-LCH	lch(38.93, 86.81, 300.70°)
OKLab	oklab(49.19% 0.0137 -0.2157)
OKLCH	oklch(49.19% 0.216 273.6)
XYZ	xyz(16.8905, 10.6210, 66.1123)
Luminance	0.1062 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4247D8 #D8D342

analogous

#4292D8 #4247D8 #8842D8

triadic

#4247D8 #D84247 #47D842

tetradic

#4247D8 #D84292 #D8D342 #42D888

square

#4247D8 #D84292 #D8D342 #42D888

split-complementary

#4247D8 #D88842 #92D842

monochromatic

#1B1F84 #262BB7 #4247D8 #7578E2 #A7AAED

Accessibility & contrast

On white

6.72

#4247D8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#4247D8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4247D8

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4247D8	#FFFFFF	#000000	##FFFFFF
##4247D8	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063DC

Deuteranopia (green-blind)

#0055D5

Tritanopia (blue-blind)

#006E8A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4247d8;
/* rgb */ color: rgb(66, 71, 216);
/* oklch */ color: oklch(49.2% 0.216 273.6);

Tailwind

colors: {
  custom: {
    50: '#8a7be5',
    500: '#4247d8',
    950: '#000000',
  },
}

SCSS

$custom: #4247d8;
$custom-light: #8a7be5;
$custom-dark: #000000;

JSON

{
  "hex": "#4247d8",
  "rgb": {
    "r": 66,
    "g": 71,
    "b": 216
  },
  "hsl": {
    "h": 238,
    "s": 65.789,
    "l": 55.294
  },
  "oklch": {
    "l": 0.49188,
    "c": 0.21613,
    "h": 273.6
  },
  "luminance": 0.10623
}

Semantic roles & 50–950 ramp

primary

#4247D8

secondary

#DAD89C

accent

#E33FE9

background

#F9F7FE

surface

#F2EEFC

border

#CCC9D5

text

#0D0916

muted

#7E7B84

Preview Lab

Preview with #4247D8

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

Preview Lab → · Contrast checker → · Palette generator →