#647EF7#647EF7

#647EF7 is a light, vivid blue. Relative luminance 0.243; OKLCH L 63.4% C 0.182 H 271.2°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#647EF7
RGB	rgb(100, 126, 247)
HSL	hsl(229, 90%, 68%)
HSV	hsv(229, 60%, 97%)
CMYK	cmyk(59.5%, 49%, 0%, 3.1%)
CIE-LAB	lab(56.43, 26.33, -63.59)
CIE-LCH	lch(56.43, 68.83, 292.49°)
OKLab	oklab(63.43% 0.0039 -0.1819)
OKLCH	oklch(63.43% 0.182 271.2)
XYZ	xyz(29.4993, 24.3440, 91.1220)
Luminance	0.2435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647EF7 #F7DD64

analogous

#64C7F7 #647EF7 #9364F7

triadic

#647EF7 #F7647E #7EF764

tetradic

#647EF7 #F764C7 #F7DD64 #64F793

square

#647EF7 #F764C7 #F7DD64 #64F793

split-complementary

#647EF7 #F79364 #C7F764

monochromatic

#0B2FD6 #2A4EF4 #647EF7 #9EAEFA #D8DFFD

Accessibility & contrast

On white

3.58

#647EF7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.87

#647EF7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647EF7

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647EF7	#FFFFFF	#000000	##000000
##647EF7	1.00	3.58	5.87	5.87
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.87	21.00	1.00	1.00
##000000	5.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E8EFB

Deuteranopia (green-blind)

#2081F4

Tritanopia (blue-blind)

#009AAF

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #647ef7;
/* rgb */ color: rgb(100, 126, 247);
/* oklch */ color: oklch(63.4% 0.182 271.2);

Tailwind

colors: {
  custom: {
    50: '#9ca3fa',
    500: '#647ef7',
    950: '#000000',
  },
}

SCSS

$custom: #647ef7;
$custom-light: #9ca3fa;
$custom-dark: #000000;

JSON

{
  "hex": "#647ef7",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 247
  },
  "hsl": {
    "h": 229.388,
    "s": 90.184,
    "l": 68.039
  },
  "oklch": {
    "l": 0.63426,
    "c": 0.18199,
    "h": 271.2
  },
  "luminance": 0.24346
}

Semantic roles & 50–950 ramp

primary

#647EF7

secondary

#F2EAC5

accent

#BD00E6

background

#FAFAFF

surface

#F4F3FF

border

#CECDD7

text

#0F0F17

muted

#7F7F85

Preview Lab

Preview with #647EF7

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

Preview Lab → · Contrast checker → · Palette generator →