#648BF7#648BF7

#648BF7 is a light, vivid blue. Relative luminance 0.279; OKLCH L 66.0% C 0.166 H 266.9°. Best body text is #000000 at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#648BF7
RGB	rgb(100, 139, 247)
HSL	hsl(224, 90%, 68%)
HSV	hsv(224, 60%, 97%)
CMYK	cmyk(59.5%, 43.7%, 0%, 3.1%)
CIE-LAB	lab(59.79, 18.51, -58.21)
CIE-LCH	lch(59.79, 61.08, 287.64°)
OKLab	oklab(65.98% -0.009 -0.166)
OKLCH	oklch(65.98% 0.166 266.9)
XYZ	xyz(31.2709, 27.8873, 91.7125)
Luminance	0.2789 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BF7 #F7D064

analogous

#64D4F7 #648BF7 #8764F7

triadic

#648BF7 #F7648B #8BF764

tetradic

#648BF7 #F764D4 #F7D064 #64F787

square

#648BF7 #F764D4 #F7D064 #64F787

split-complementary

#648BF7 #F78764 #D4F764

monochromatic

#0B41D6 #2A5FF4 #648BF7 #9EB7FA #D8E2FD

Accessibility & contrast

On white

3.19

#648BF7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.58

#648BF7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BF7

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BF7	#FFFFFF	#000000	##000000
##648BF7	1.00	3.19	6.58	6.58
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.58	21.00	1.00	1.00
##000000	6.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5997FB

Deuteranopia (green-blind)

#448AF5

Tritanopia (blue-blind)

#00A3B5

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #648bf7;
/* rgb */ color: rgb(100, 139, 247);
/* oklch */ color: oklch(66.0% 0.166 266.9);

Tailwind

colors: {
  custom: {
    50: '#9cacfa',
    500: '#648bf7',
    950: '#000000',
  },
}

SCSS

$custom: #648bf7;
$custom-light: #9cacfa;
$custom-dark: #000000;

JSON

{
  "hex": "#648bf7",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 247
  },
  "hsl": {
    "h": 224.082,
    "s": 90.184,
    "l": 68.039
  },
  "oklch": {
    "l": 0.65984,
    "c": 0.16622,
    "h": 266.9
  },
  "luminance": 0.2789
}

Semantic roles & 50–950 ramp

primary

#648BF7

secondary

#F2E6C5

accent

#A900E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #648BF7

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

Preview Lab → · Contrast checker → · Palette generator →