#647EF4#647EF4

#647EF4 is a light, vivid blue. Relative luminance 0.242; OKLCH L 63.2% C 0.178 H 271.2°. Best body text is #000000 at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#647EF4
RGB	rgb(100, 126, 244)
HSL	hsl(229, 87%, 67%)
HSV	hsv(229, 59%, 96%)
CMYK	cmyk(59%, 48.4%, 0%, 4.3%)
CIE-LAB	lab(56.25, 25.35, -62.23)
CIE-LCH	lch(56.25, 67.19, 292.16°)
OKLab	oklab(63.23% 0.0036 -0.1779)
OKLCH	oklch(63.23% 0.178 271.2)
XYZ	xyz(29.0401, 24.1604, 88.7035)
Luminance	0.2416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647EF4 #F4DA64

analogous

#64C6F4 #647EF4 #9264F4

triadic

#647EF4 #F4647E #7EF464

tetradic

#647EF4 #F464C6 #F4DA64 #64F492

square

#647EF4 #F464C6 #F4DA64 #64F492

split-complementary

#647EF4 #F49264 #C6F464

monochromatic

#0F31CF #2B4EF0 #647EF4 #9DAEF8 #D6DDFC

Accessibility & contrast

On white

3.60

#647EF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.83

#647EF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647EF4

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647EF4	#FFFFFF	#000000	##000000
##647EF4	1.00	3.60	5.83	5.83
#FFFFFF	3.60	1.00	21.00	21.00
#000000	5.83	21.00	1.00	1.00
##000000	5.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#428DF8

Deuteranopia (green-blind)

#2781F2

Tritanopia (blue-blind)

#0099AD

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #647ef4;
/* rgb */ color: rgb(100, 126, 244);
/* oklch */ color: oklch(63.2% 0.178 271.2);

Tailwind

colors: {
  custom: {
    50: '#9ca3f8',
    500: '#647ef4',
    950: '#000000',
  },
}

SCSS

$custom: #647ef4;
$custom-light: #9ca3f8;
$custom-dark: #000000;

JSON

{
  "hex": "#647ef4",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 244
  },
  "hsl": {
    "h": 229.167,
    "s": 86.747,
    "l": 67.451
  },
  "oklch": {
    "l": 0.63229,
    "c": 0.17796,
    "h": 271.2
  },
  "luminance": 0.24163
}

Semantic roles & 50–950 ramp

primary

#647EF4

secondary

#F0E8C3

accent

#BB02E3

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0F17

muted

#7F7E85

Preview Lab

Preview with #647EF4

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

Preview Lab → · Contrast checker → · Palette generator →