#648BF4#648BF4

#648BF4 is a light, vivid blue. Relative luminance 0.277; OKLCH L 65.8% C 0.162 H 266.6°. Best body text is #000000 at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#648BF4
RGB	rgb(100, 139, 244)
HSL	hsl(224, 87%, 67%)
HSV	hsv(224, 59%, 96%)
CMYK	cmyk(59%, 43%, 0%, 4.3%)
CIE-LAB	lab(59.62, 17.53, -56.83)
CIE-LCH	lch(59.62, 59.47, 287.14°)
OKLab	oklab(65.8% -0.0095 -0.1619)
OKLCH	oklch(65.8% 0.162 266.6)
XYZ	xyz(30.8117, 27.7036, 89.2940)
Luminance	0.2771 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BF4 #F4CD64

analogous

#64D3F4 #648BF4 #8564F4

triadic

#648BF4 #F4648B #8BF464

tetradic

#648BF4 #F464D3 #F4CD64 #64F485

square

#648BF4 #F464D3 #F4CD64 #64F485

split-complementary

#648BF4 #F48564 #D3F464

monochromatic

#0F43CF #2B60F0 #648BF4 #9DB6F8 #D6E1FC

Accessibility & contrast

On white

3.21

#648BF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.54

#648BF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BF4

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BF4	#FFFFFF	#000000	##000000
##648BF4	1.00	3.21	6.54	6.54
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.54	21.00	1.00	1.00
##000000	6.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C97F8

Deuteranopia (green-blind)

#478AF2

Tritanopia (blue-blind)

#00A3B4

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #648bf4;
/* rgb */ color: rgb(100, 139, 244);
/* oklch */ color: oklch(65.8% 0.162 266.6);

Tailwind

colors: {
  custom: {
    50: '#9bacf8',
    500: '#648bf4',
    950: '#000000',
  },
}

SCSS

$custom: #648bf4;
$custom-light: #9bacf8;
$custom-dark: #000000;

JSON

{
  "hex": "#648bf4",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 244
  },
  "hsl": {
    "h": 223.75,
    "s": 86.747,
    "l": 67.451
  },
  "oklch": {
    "l": 0.65802,
    "c": 0.16218,
    "h": 266.6
  },
  "luminance": 0.27706
}

Semantic roles & 50–950 ramp

primary

#648BF4

secondary

#F0E4C3

accent

#A602E3

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #648BF4

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

Preview Lab → · Contrast checker → · Palette generator →