#648DF3#648DF3

#648DF3 is a light, vivid blue. Relative luminance 0.282; OKLCH L 66.1% C 0.158 H 265.8°. Best body text is #000000 at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#648DF3
RGB	rgb(100, 141, 243)
HSL	hsl(223, 86%, 67%)
HSV	hsv(223, 59%, 95%)
CMYK	cmyk(58.8%, 42%, 0%, 4.7%)
CIE-LAB	lab(60.09, 16.01, -55.52)
CIE-LCH	lch(60.09, 57.78, 286.08°)
OKLab	oklab(66.15% -0.0117 -0.158)
OKLCH	oklch(66.15% 0.158 265.8)
XYZ	xyz(30.9525, 28.2276, 88.5940)
Luminance	0.2823 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648DF3 #F3CA64

analogous

#64D5F3 #648DF3 #8264F3

triadic

#648DF3 #F3648D #8DF364

tetradic

#648DF3 #F364D5 #F3CA64 #64F382

square

#648DF3 #F364D5 #F3CA64 #64F382

split-complementary

#648DF3 #F38264 #D5F364

monochromatic

#1046CD #2B63EF #648DF3 #9DB7F7 #D6E1FC

Accessibility & contrast

On white

3.16

#648DF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.65

#648DF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648DF3

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648DF3	#FFFFFF	#000000	##000000
##648DF3	1.00	3.16	6.65	6.65
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.65	21.00	1.00	1.00
##000000	6.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6098F7

Deuteranopia (green-blind)

#4C8BF1

Tritanopia (blue-blind)

#00A4B4

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #648df3;
/* rgb */ color: rgb(100, 141, 243);
/* oklch */ color: oklch(66.1% 0.158 265.8);

Tailwind

colors: {
  custom: {
    50: '#9badf7',
    500: '#648df3',
    950: '#000000',
  },
}

SCSS

$custom: #648df3;
$custom-light: #9badf7;
$custom-dark: #000000;

JSON

{
  "hex": "#648df3",
  "rgb": {
    "r": 100,
    "g": 141,
    "b": 243
  },
  "hsl": {
    "h": 222.797,
    "s": 85.629,
    "l": 67.255
  },
  "oklch": {
    "l": 0.66149,
    "c": 0.15848,
    "h": 265.8
  },
  "luminance": 0.2823
}

Semantic roles & 50–950 ramp

primary

#648DF3

secondary

#F0E3C3

accent

#A203E2

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #648DF3

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

Preview Lab → · Contrast checker → · Palette generator →