#4247B7#4247B7

#4247B7 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 46.3% C 0.174 H 275.3°. Best body text is #FFFFFF at 7.46:1 contrast (WCAG AA passes).

Color values

HEX	#4247B7
RGB	rgb(66, 71, 183)
HSL	hsl(237, 47%, 49%)
HSV	hsv(237, 64%, 72%)
CMYK	cmyk(63.9%, 61.2%, 0%, 28.2%)
CIE-LAB	lab(36.14, 33.16, -60.01)
CIE-LCH	lch(36.14, 68.56, 298.92°)
OKLab	oklab(46.29% 0.0162 -0.1728)
OKLCH	oklch(46.29% 0.174 275.3)
XYZ	xyz(13.0444, 9.0825, 45.8563)
Luminance	0.0908 (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

#4247B7 #B7B242

analogous

#4282B7 #4247B7 #7842B7

triadic

#4247B7 #B74247 #47B742

tetradic

#4247B7 #B74282 #B7B242 #42B778

square

#4247B7 #B74282 #B7B242 #42B778

split-complementary

#4247B7 #B77842 #82B742

monochromatic

#22245D #32368A #4247B7 #6C70CA #999CDA

Accessibility & contrast

On white

7.46

#4247B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#4247B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4247B7

7.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4247B7	#FFFFFF	#000000	##FFFFFF
##4247B7	1.00	7.46	2.82	7.46
#FFFFFF	7.46	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABB

Deuteranopia (green-blind)

#0050B5

Tritanopia (blue-blind)

#006378

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #4247b7;
/* rgb */ color: rgb(66, 71, 183);
/* oklch */ color: oklch(46.3% 0.174 275.3);

Tailwind

colors: {
  custom: {
    50: '#837acd',
    500: '#4247b7',
    950: '#000000',
  },
}

SCSS

$custom: #4247b7;
$custom-light: #837acd;
$custom-dark: #000000;

JSON

{
  "hex": "#4247b7",
  "rgb": {
    "r": 66,
    "g": 71,
    "b": 183
  },
  "hsl": {
    "h": 237.436,
    "s": 46.988,
    "l": 48.824
  },
  "oklch": {
    "l": 0.46288,
    "c": 0.17356,
    "h": 275.3
  },
  "luminance": 0.09084
}

Semantic roles & 50–950 ramp

primary

#4247B7

secondary

#C6C48F

accent

#D151D7

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #4247B7

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

Preview Lab → · Contrast checker → · Palette generator →