#647EDD#647EDD

#647EDD is a mid, vivid blue. Relative luminance 0.229; OKLCH L 61.8% C 0.146 H 270.2°. Best body text is #000000 at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#647EDD
RGB	rgb(100, 126, 221)
HSL	hsl(227, 64%, 63%)
HSV	hsv(227, 55%, 87%)
CMYK	cmyk(54.8%, 43%, 0%, 13.3%)
CIE-LAB	lab(54.92, 17.91, -51.52)
CIE-LCH	lch(54.92, 54.55, 289.17°)
OKLab	oklab(61.78% 0.0004 -0.1465)
OKLCH	oklch(61.78% 0.146 270.2)
XYZ	xyz(25.7632, 22.8496, 71.4454)
Luminance	0.2285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647EDD #DDC364

analogous

#64BBDD #647EDD #8664DD

triadic

#647EDD #DD647E #7EDD64

tetradic

#647EDD #DD64BB #DDC364 #64DD86

square

#647EDD #DD64BB #DDC364 #64DD86

split-complementary

#647EDD #DD8664 #BBDD64

monochromatic

#243FA3 #3254D2 #647EDD #96A8E8 #C8D2F3

Accessibility & contrast

On white

3.77

#647EDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.57

#647EDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647EDD

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647EDD	#FFFFFF	#000000	##000000
##647EDD	1.00	3.77	5.57	5.57
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.57	21.00	1.00	1.00
##000000	5.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5589E1

Deuteranopia (green-blind)

#467EDB

Tritanopia (blue-blind)

#2093A3

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #647edd;
/* rgb */ color: rgb(100, 126, 221);
/* oklch */ color: oklch(61.8% 0.146 270.2);

Tailwind

colors: {
  custom: {
    50: '#98a3e8',
    500: '#647edd',
    950: '#000000',
  },
}

SCSS

$custom: #647edd;
$custom-light: #98a3e8;
$custom-dark: #000000;

JSON

{
  "hex": "#647edd",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 221
  },
  "hsl": {
    "h": 227.107,
    "s": 64.021,
    "l": 62.941
  },
  "oklch": {
    "l": 0.61784,
    "c": 0.14648,
    "h": 270.2
  },
  "luminance": 0.22851
}

Semantic roles & 50–950 ramp

primary

#647EDD

secondary

#E4DBB9

accent

#A61ACC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #647EDD

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

Preview Lab → · Contrast checker → · Palette generator →