#648FEA#648FEA

#648FEA is a light, vivid blue. Relative luminance 0.283; OKLCH L 66.0% C 0.144 H 263.8°. Best body text is #000000 at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#648FEA
RGB	rgb(100, 143, 234)
HSL	hsl(221, 76%, 65%)
HSV	hsv(221, 57%, 92%)
CMYK	cmyk(57.3%, 38.9%, 0%, 8.2%)
CIE-LAB	lab(60.15, 11.90, -50.45)
CIE-LCH	lch(60.15, 51.84, 283.28°)
OKLab	oklab(66.04% -0.0156 -0.1432)
OKLCH	oklch(66.04% 0.144 263.8)
XYZ	xyz(29.9242, 28.2923, 81.7100)
Luminance	0.2829 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648FEA #EABF64

analogous

#64D2EA #648FEA #7C64EA

triadic

#648FEA #EA648F #8FEA64

tetradic

#648FEA #EA64D2 #EABF64 #64EA7C

square

#648FEA #EA64D2 #EABF64 #64EA7C

split-complementary

#648FEA #EA7C64 #D2EA64

monochromatic

#194DBA #2E68E3 #648FEA #9AB6F1 #D0DDF9

Accessibility & contrast

On white

3.15

#648FEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.66

#648FEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648FEA

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648FEA	#FFFFFF	#000000	##000000
##648FEA	1.00	3.15	6.66	6.66
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.66	21.00	1.00	1.00
##000000	6.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6998EE

Deuteranopia (green-blind)

#578BE8

Tritanopia (blue-blind)

#00A3B1

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #648fea;
/* rgb */ color: rgb(100, 143, 234);
/* oklch */ color: oklch(66.0% 0.144 263.8);

Tailwind

colors: {
  custom: {
    50: '#9aaff1',
    500: '#648fea',
    950: '#000000',
  },
}

SCSS

$custom: #648fea;
$custom-light: #9aaff1;
$custom-dark: #000000;

JSON

{
  "hex": "#648fea",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 234
  },
  "hsl": {
    "h": 220.746,
    "s": 76.136,
    "l": 65.49
  },
  "oklch": {
    "l": 0.66039,
    "c": 0.14402,
    "h": 263.8
  },
  "luminance": 0.28295
}

Semantic roles & 50–950 ramp

primary

#648FEA

secondary

#EBDDBE

accent

#970DD8

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #648FEA

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

Preview Lab → · Contrast checker → · Palette generator →