#648CFB#648CFB

#648CFB is a light, vivid blue. Relative luminance 0.284; OKLCH L 66.4% C 0.170 H 266.8°. Best body text is #000000 at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#648CFB
RGB	rgb(100, 140, 251)
HSL	hsl(224, 95%, 69%)
HSV	hsv(224, 60%, 98%)
CMYK	cmyk(60.2%, 44.2%, 0%, 1.6%)
CIE-LAB	lab(60.27, 19.22, -59.64)
CIE-LCH	lch(60.27, 62.66, 287.86°)
OKLab	oklab(66.43% -0.0094 -0.1701)
OKLCH	oklch(66.43% 0.17 266.8)
XYZ	xyz(32.0403, 28.4278, 95.0467)
Luminance	0.2843 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648CFB #FBD364

analogous

#64D8FB #648CFB #8864FB

triadic

#648CFB #FB648C #8CFB64

tetradic

#648CFB #FB64D8 #FBD364 #64FB88

square

#648CFB #FB64D8 #FBD364 #64FB88

split-complementary

#648CFB #FB8864 #D8FB64

monochromatic

#063FDF #2860F9 #648CFB #A0B8FD #DBE5FE

Accessibility & contrast

On white

3.14

#648CFB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.69

#648CFB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648CFB

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648CFB	#FFFFFF	#000000	##000000
##648CFB	1.00	3.14	6.69	6.69
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.69	21.00	1.00	1.00
##000000	6.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5899FF

Deuteranopia (green-blind)

#418BF9

Tritanopia (blue-blind)

#00A5B7

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #648cfb;
/* rgb */ color: rgb(100, 140, 251);
/* oklch */ color: oklch(66.4% 0.170 266.8);

Tailwind

colors: {
  custom: {
    50: '#9cadfd',
    500: '#648cfb',
    950: '#000000',
  },
}

SCSS

$custom: #648cfb;
$custom-light: #9cadfd;
$custom-dark: #000000;

JSON

{
  "hex": "#648cfb",
  "rgb": {
    "r": 100,
    "g": 140,
    "b": 251
  },
  "hsl": {
    "h": 224.106,
    "s": 94.969,
    "l": 68.824
  },
  "oklch": {
    "l": 0.6643,
    "c": 0.17041,
    "h": 266.8
  },
  "luminance": 0.28431
}

Semantic roles & 50–950 ramp

primary

#648CFB

secondary

#F4E8C7

accent

#A900E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #648CFB

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

Preview Lab → · Contrast checker → · Palette generator →