#648BF3#648BF3

#648BF3 is a light, vivid blue. Relative luminance 0.276; OKLCH L 65.7% C 0.161 H 266.6°. Best body text is #000000 at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#648BF3
RGB	rgb(100, 139, 243)
HSL	hsl(224, 86%, 67%)
HSV	hsv(224, 59%, 95%)
CMYK	cmyk(58.8%, 42.8%, 0%, 4.7%)
CIE-LAB	lab(59.56, 17.20, -56.36)
CIE-LCH	lch(59.56, 58.93, 286.97°)
OKLab	oklab(65.74% -0.0097 -0.1605)
OKLCH	oklch(65.74% 0.161 266.6)
XYZ	xyz(30.6603, 27.6431, 88.4966)
Luminance	0.2765 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BF3 #F3CC64

analogous

#64D3F3 #648BF3 #8464F3

triadic

#648BF3 #F3648B #8BF364

tetradic

#648BF3 #F364D3 #F3CC64 #64F384

square

#648BF3 #F364D3 #F3CC64 #64F384

split-complementary

#648BF3 #F38464 #D3F364

monochromatic

#1043CD #2B60EF #648BF3 #9DB6F7 #D6E0FC

Accessibility & contrast

On white

3.22

#648BF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.53

#648BF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BF3

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BF3	#FFFFFF	#000000	##000000
##648BF3	1.00	3.22	6.53	6.53
#FFFFFF	3.22	1.00	21.00	21.00
#000000	6.53	21.00	1.00	1.00
##000000	6.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C96F7

Deuteranopia (green-blind)

#4889F1

Tritanopia (blue-blind)

#00A2B3

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #648bf3;
/* rgb */ color: rgb(100, 139, 243);
/* oklch */ color: oklch(65.7% 0.161 266.6);

Tailwind

colors: {
  custom: {
    50: '#9bacf7',
    500: '#648bf3',
    950: '#000000',
  },
}

SCSS

$custom: #648bf3;
$custom-light: #9bacf7;
$custom-dark: #000000;

JSON

{
  "hex": "#648bf3",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 243
  },
  "hsl": {
    "h": 223.636,
    "s": 85.629,
    "l": 67.255
  },
  "oklch": {
    "l": 0.65742,
    "c": 0.16083,
    "h": 266.6
  },
  "luminance": 0.27646
}

Semantic roles & 50–950 ramp

primary

#648BF3

secondary

#F0E4C3

accent

#A503E2

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #648BF3

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

Preview Lab → · Contrast checker → · Palette generator →