#4247BC#4247BC

#4247BC is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.7% C 0.180 H 275.1°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#4247BC
RGB	rgb(66, 71, 188)
HSL	hsl(238, 48%, 50%)
HSV	hsv(238, 65%, 74%)
CMYK	cmyk(64.9%, 62.2%, 0%, 26.3%)
CIE-LAB	lab(36.55, 34.87, -62.30)
CIE-LCH	lch(36.55, 71.39, 299.23°)
OKLab	oklab(46.71% 0.0159 -0.1795)
OKLCH	oklch(46.71% 0.18 275.1)
XYZ	xyz(13.5741, 9.2944, 48.6459)
Luminance	0.0930 (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

#4247BC #BCB742

analogous

#4284BC #4247BC #7A42BC

triadic

#4247BC #BC4247 #47BC42

tetradic

#4247BC #BC4284 #BCB742 #42BC7A

square

#4247BC #BC4284 #BCB742 #42BC7A

split-complementary

#4247BC #BC7A42 #84BC42

monochromatic

#222561 #32368F #4247BC #6F73CC #9C9FDC

Accessibility & contrast

On white

7.34

#4247BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#4247BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4247BC

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4247BC	#FFFFFF	#000000	##FFFFFF
##4247BC	1.00	7.34	2.86	7.34
#FFFFFF	7.34	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC0

Deuteranopia (green-blind)

#0051BA

Tritanopia (blue-blind)

#00647B

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #4247bc;
/* rgb */ color: rgb(66, 71, 188);
/* oklch */ color: oklch(46.7% 0.180 275.1);

Tailwind

colors: {
  custom: {
    50: '#847ad1',
    500: '#4247bc',
    950: '#000000',
  },
}

SCSS

$custom: #4247bc;
$custom-light: #847ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#4247bc",
  "rgb": {
    "r": 66,
    "g": 71,
    "b": 188
  },
  "hsl": {
    "h": 237.541,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.46709,
    "c": 0.18024,
    "h": 275.1
  },
  "luminance": 0.09296
}

Semantic roles & 50–950 ramp

primary

#4247BC

secondary

#C9C691

accent

#D250D8

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #4247BC

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

Preview Lab → · Contrast checker → · Palette generator →