#648FEC#648FEC

#648FEC is a light, vivid blue. Relative luminance 0.284; OKLCH L 66.2% C 0.147 H 264.1°. Best body text is #000000 at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#648FEC
RGB	rgb(100, 143, 236)
HSL	hsl(221, 78%, 66%)
HSV	hsv(221, 58%, 93%)
CMYK	cmyk(57.6%, 39.4%, 0%, 7.5%)
CIE-LAB	lab(60.26, 12.55, -51.39)
CIE-LCH	lch(60.26, 52.90, 283.72°)
OKLab	oklab(66.15% -0.0151 -0.1459)
OKLCH	oklch(66.15% 0.147 264.1)
XYZ	xyz(30.2131, 28.4079, 83.2317)
Luminance	0.2841 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648FEC #ECC164

analogous

#64D3EC #648FEC #7D64EC

triadic

#648FEC #EC648F #8FEC64

tetradic

#648FEC #EC64D3 #ECC164 #64EC7D

square

#648FEC #EC64D3 #ECC164 #64EC7D

split-complementary

#648FEC #EC7D64 #D3EC64

monochromatic

#174CBE #2D68E5 #648FEC #9BB6F3 #D1DEF9

Accessibility & contrast

On white

3.14

#648FEC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.68

#648FEC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648FEC

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648FEC	#FFFFFF	#000000	##000000
##648FEC	1.00	3.14	6.68	6.68
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.68	21.00	1.00	1.00
##000000	6.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6798F0

Deuteranopia (green-blind)

#568BEA

Tritanopia (blue-blind)

#00A4B2

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #648fec;
/* rgb */ color: rgb(100, 143, 236);
/* oklch */ color: oklch(66.2% 0.147 264.1);

Tailwind

colors: {
  custom: {
    50: '#9aaff2',
    500: '#648fec',
    950: '#000000',
  },
}

SCSS

$custom: #648fec;
$custom-light: #9aaff2;
$custom-dark: #000000;

JSON

{
  "hex": "#648fec",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 236
  },
  "hsl": {
    "h": 221.029,
    "s": 78.161,
    "l": 65.882
  },
  "oklch": {
    "l": 0.66152,
    "c": 0.14672,
    "h": 264.1
  },
  "luminance": 0.2841
}

Semantic roles & 50–950 ramp

primary

#648FEC

secondary

#ECDEBF

accent

#990BDA

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #648FEC

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

Preview Lab → · Contrast checker → · Palette generator →