#4247C7#4247C7

#4247C7 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.7% C 0.195 H 274.5°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#4247C7
RGB	rgb(66, 71, 199)
HSL	hsl(238, 54%, 52%)
HSV	hsv(238, 67%, 78%)
CMYK	cmyk(66.8%, 64.3%, 0%, 22%)
CIE-LAB	lab(37.46, 38.61, -67.24)
CIE-LCH	lch(37.46, 77.54, 299.86°)
OKLab	oklab(47.66% 0.0153 -0.194)
OKLCH	oklch(47.66% 0.195 274.5)
XYZ	xyz(14.8054, 9.7869, 55.1306)
Luminance	0.0979 (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

#4247C7 #C7C242

analogous

#428AC7 #4247C7 #7F42C7

triadic

#4247C7 #C74247 #47C742

tetradic

#4247C7 #C7428A #C7C242 #42C77F

square

#4247C7 #C7428A #C7C242 #42C77F

split-complementary

#4247C7 #C77F42 #8AC742

monochromatic

#21246E #2F339D #4247C7 #7175D5 #A0A3E3

Accessibility & contrast

On white

7.10

#4247C7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#4247C7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4247C7

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4247C7	#FFFFFF	#000000	##FFFFFF
##4247C7	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ECB

Deuteranopia (green-blind)

#0052C5

Tritanopia (blue-blind)

#006880

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #4247c7;
/* rgb */ color: rgb(66, 71, 199);
/* oklch */ color: oklch(47.7% 0.195 274.5);

Tailwind

colors: {
  custom: {
    50: '#877ad9',
    500: '#4247c7',
    950: '#000000',
  },
}

SCSS

$custom: #4247c7;
$custom-light: #877ad9;
$custom-dark: #000000;

JSON

{
  "hex": "#4247c7",
  "rgb": {
    "r": 66,
    "g": 71,
    "b": 199
  },
  "hsl": {
    "h": 237.744,
    "s": 54.286,
    "l": 51.961
  },
  "oklch": {
    "l": 0.4766,
    "c": 0.19462,
    "h": 274.5
  },
  "luminance": 0.09788
}

Semantic roles & 50–950 ramp

primary

#4247C7

secondary

#D0CD95

accent

#D84ADE

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0915

muted

#7D7B83

Preview Lab

Preview with #4247C7

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

Preview Lab → · Contrast checker → · Palette generator →