#4247CC#4247CC

#4247CC is a mid, highly saturated blue. Relative luminance 0.100; OKLCH L 48.1% C 0.201 H 274.2°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#4247CC
RGB	rgb(66, 71, 204)
HSL	hsl(238, 58%, 53%)
HSV	hsv(238, 68%, 80%)
CMYK	cmyk(67.6%, 65.2%, 0%, 20%)
CIE-LAB	lab(37.88, 40.30, -69.45)
CIE-LCH	lch(37.88, 80.29, 300.13°)
OKLab	oklab(48.1% 0.0148 -0.2005)
OKLCH	oklch(48.1% 0.201 274.2)
XYZ	xyz(15.3955, 10.0229, 58.2383)
Luminance	0.1002 (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

#4247CC #CCC742

analogous

#428CCC #4247CC #8242CC

triadic

#4247CC #CC4247 #47CC42

tetradic

#4247CC #CC428C #CCC742 #42CC82

square

#4247CC #CC428C #CCC742 #42CC82

split-complementary

#4247CC #CC8242 #8CCC42

monochromatic

#1F2274 #2C31A4 #4247CC #7276D9 #A2A5E6

Accessibility & contrast

On white

6.99

#4247CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.00

#4247CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4247CC

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4247CC	#FFFFFF	#000000	##FFFFFF
##4247CC	1.00	6.99	3.00	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD0

Deuteranopia (green-blind)

#0053C9

Tritanopia (blue-blind)

#006A83

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #4247cc;
/* rgb */ color: rgb(66, 71, 204);
/* oklch */ color: oklch(48.1% 0.201 274.2);

Tailwind

colors: {
  custom: {
    50: '#887add',
    500: '#4247cc',
    950: '#000000',
  },
}

SCSS

$custom: #4247cc;
$custom-light: #887add;
$custom-dark: #000000;

JSON

{
  "hex": "#4247cc",
  "rgb": {
    "r": 66,
    "g": 71,
    "b": 204
  },
  "hsl": {
    "h": 237.826,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.48103,
    "c": 0.20103,
    "h": 274.2
  },
  "luminance": 0.10024
}

Semantic roles & 50–950 ramp

primary

#4247CC

secondary

#D3D197

accent

#DB47E1

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4247CC

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

Preview Lab → · Contrast checker → · Palette generator →