#648BF0#648BF0

#648BF0 is a light, vivid blue. Relative luminance 0.275; OKLCH L 65.6% C 0.157 H 266.3°. Best body text is #000000 at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#648BF0
RGB	rgb(100, 139, 240)
HSL	hsl(223, 82%, 67%)
HSV	hsv(223, 58%, 94%)
CMYK	cmyk(58.3%, 42.1%, 0%, 5.9%)
CIE-LAB	lab(59.40, 16.23, -54.97)
CIE-LCH	lch(59.40, 57.31, 286.45°)
OKLab	oklab(65.56% -0.0102 -0.1564)
OKLCH	oklch(65.56% 0.157 266.3)
XYZ	xyz(30.2110, 27.4633, 86.1301)
Luminance	0.2747 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BF0 #F0C964

analogous

#64D1F0 #648BF0 #8364F0

triadic

#648BF0 #F0648B #8BF064

tetradic

#648BF0 #F064D1 #F0C964 #64F083

square

#648BF0 #F064D1 #F0C964 #64F083

split-complementary

#648BF0 #F08364 #D1F064

monochromatic

#1345C6 #2C61EB #648BF0 #9CB5F5 #D4DFFB

Accessibility & contrast

On white

3.23

#648BF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.49

#648BF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BF0

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BF0	#FFFFFF	#000000	##000000
##648BF0	1.00	3.23	6.49	6.49
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.49	21.00	1.00	1.00
##000000	6.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E96F4

Deuteranopia (green-blind)

#4B89EE

Tritanopia (blue-blind)

#00A2B2

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #648bf0;
/* rgb */ color: rgb(100, 139, 240);
/* oklch */ color: oklch(65.6% 0.157 266.3);

Tailwind

colors: {
  custom: {
    50: '#9bacf5',
    500: '#648bf0',
    950: '#000000',
  },
}

SCSS

$custom: #648bf0;
$custom-light: #9bacf5;
$custom-dark: #000000;

JSON

{
  "hex": "#648bf0",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 240
  },
  "hsl": {
    "h": 223.286,
    "s": 82.353,
    "l": 66.667
  },
  "oklch": {
    "l": 0.65563,
    "c": 0.15678,
    "h": 266.3
  },
  "luminance": 0.27466
}

Semantic roles & 50–950 ramp

primary

#648BF0

secondary

#EEE2C1

accent

#A307DF

background

#FAFAFF

surface

#F3F4FE

border

#CDCED6

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #648BF0

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

Preview Lab → · Contrast checker → · Palette generator →