#648BFB#648BFB

#648BFB is a light, vivid blue. Relative luminance 0.281; OKLCH L 66.2% C 0.172 H 267.2°. Best body text is #000000 at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#648BFB
RGB	rgb(100, 139, 251)
HSL	hsl(225, 95%, 69%)
HSV	hsv(225, 60%, 98%)
CMYK	cmyk(60.2%, 44.6%, 0%, 1.6%)
CIE-LAB	lab(60.01, 19.82, -60.05)
CIE-LCH	lch(60.01, 63.24, 288.26°)
OKLab	oklab(66.23% -0.0084 -0.1714)
OKLCH	oklch(66.23% 0.172 267.2)
XYZ	xyz(31.8948, 28.1369, 94.9982)
Luminance	0.2814 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BFB #FBD464

analogous

#64D7FB #648BFB #8964FB

triadic

#648BFB #FB648B #8BFB64

tetradic

#648BFB #FB64D7 #FBD464 #64FB89

square

#648BFB #FB64D7 #FBD464 #64FB89

split-complementary

#648BFB #FB8964 #D7FB64

monochromatic

#063EDF #285EF9 #648BFB #A0B8FD #DBE4FE

Accessibility & contrast

On white

3.17

#648BFB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.63

#648BFB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BFB

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BFB	#FFFFFF	#000000	##000000
##648BFB	1.00	3.17	6.63	6.63
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.63	21.00	1.00	1.00
##000000	6.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5698FF

Deuteranopia (green-blind)

#3F8AF9

Tritanopia (blue-blind)

#00A4B7

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #648bfb;
/* rgb */ color: rgb(100, 139, 251);
/* oklch */ color: oklch(66.2% 0.172 267.2);

Tailwind

colors: {
  custom: {
    50: '#9cacfd',
    500: '#648bfb',
    950: '#000000',
  },
}

SCSS

$custom: #648bfb;
$custom-light: #9cacfd;
$custom-dark: #000000;

JSON

{
  "hex": "#648bfb",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 251
  },
  "hsl": {
    "h": 224.503,
    "s": 94.969,
    "l": 68.824
  },
  "oklch": {
    "l": 0.6623,
    "c": 0.17159,
    "h": 267.2
  },
  "luminance": 0.2814
}

Semantic roles & 50–950 ramp

primary

#648BFB

secondary

#F4E8C7

accent

#AA00E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #648BFB

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

Preview Lab → · Contrast checker → · Palette generator →