#648CE4#648CE4

#648CE4 is a light, vivid blue. Relative luminance 0.271; OKLCH L 65.1% C 0.139 H 264.4°. Best body text is #000000 at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#648CE4
RGB	rgb(100, 140, 228)
HSL	hsl(221, 70%, 64%)
HSV	hsv(221, 56%, 89%)
CMYK	cmyk(56.1%, 38.6%, 0%, 10.6%)
CIE-LAB	lab(59.03, 11.76, -48.89)
CIE-LCH	lch(59.03, 50.29, 283.52°)
OKLab	oklab(65.07% -0.0136 -0.1386)
OKLCH	oklch(65.07% 0.139 264.4)
XYZ	xyz(28.6324, 27.0647, 77.0989)
Luminance	0.2707 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648CE4 #E4BC64

analogous

#64CCE4 #648CE4 #7C64E4

triadic

#648CE4 #E4648C #8CE464

tetradic

#648CE4 #E464CC #E4BC64 #64E47C

square

#648CE4 #E464CC #E4BC64 #64E47C

split-complementary

#648CE4 #E47C64 #CCE464

monochromatic

#1F4CAF #3065DB #648CE4 #98B3ED #CCD9F6

Accessibility & contrast

On white

3.27

#648CE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.41

#648CE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648CE4

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648CE4	#FFFFFF	#000000	##000000
##648CE4	1.00	3.27	6.41	6.41
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.41	21.00	1.00	1.00
##000000	6.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6794E8

Deuteranopia (green-blind)

#5789E2

Tritanopia (blue-blind)

#049FAD

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #648ce4;
/* rgb */ color: rgb(100, 140, 228);
/* oklch */ color: oklch(65.1% 0.139 264.4);

Tailwind

colors: {
  custom: {
    50: '#99aded',
    500: '#648ce4',
    950: '#000000',
  },
}

SCSS

$custom: #648ce4;
$custom-light: #99aded;
$custom-dark: #000000;

JSON

{
  "hex": "#648ce4",
  "rgb": {
    "r": 100,
    "g": 140,
    "b": 228
  },
  "hsl": {
    "h": 221.25,
    "s": 70.33,
    "l": 64.314
  },
  "oklch": {
    "l": 0.65074,
    "c": 0.13931,
    "h": 264.4
  },
  "luminance": 0.27067
}

Semantic roles & 50–950 ramp

primary

#648CE4

secondary

#E8DABC

accent

#9713D2

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #648CE4

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

Preview Lab → · Contrast checker → · Palette generator →