#648FEE#648FEE

#648FEE is a light, vivid blue. Relative luminance 0.285; OKLCH L 66.3% C 0.149 H 264.3°. Best body text is #000000 at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#648FEE
RGB	rgb(100, 143, 238)
HSL	hsl(221, 80%, 66%)
HSV	hsv(221, 58%, 93%)
CMYK	cmyk(58%, 39.9%, 0%, 6.7%)
CIE-LAB	lab(60.36, 13.20, -52.33)
CIE-LCH	lch(60.36, 53.97, 284.15°)
OKLab	oklab(66.27% -0.0147 -0.1487)
OKLCH	oklch(66.27% 0.149 264.3)
XYZ	xyz(30.5053, 28.5248, 84.7706)
Luminance	0.2853 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648FEE #EEC364

analogous

#64D4EE #648FEE #7E64EE

triadic

#648FEE #EE648F #8FEE64

tetradic

#648FEE #EE64D4 #EEC364 #64EE7E

square

#648FEE #EE64D4 #EEC364 #64EE7E

split-complementary

#648FEE #EE7E64 #D4EE64

monochromatic

#154BC2 #2D67E8 #648FEE #9BB7F4 #D2DFFA

Accessibility & contrast

On white

3.13

#648FEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.71

#648FEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648FEE

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648FEE	#FFFFFF	#000000	##000000
##648FEE	1.00	3.13	6.71	6.71
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.71	21.00	1.00	1.00
##000000	6.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6698F2

Deuteranopia (green-blind)

#548CEC

Tritanopia (blue-blind)

#00A4B3

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #648fee;
/* rgb */ color: rgb(100, 143, 238);
/* oklch */ color: oklch(66.3% 0.149 264.3);

Tailwind

colors: {
  custom: {
    50: '#9aaff4',
    500: '#648fee',
    950: '#000000',
  },
}

SCSS

$custom: #648fee;
$custom-light: #9aaff4;
$custom-dark: #000000;

JSON

{
  "hex": "#648fee",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 238
  },
  "hsl": {
    "h": 221.304,
    "s": 80.233,
    "l": 66.275
  },
  "oklch": {
    "l": 0.66267,
    "c": 0.14942,
    "h": 264.3
  },
  "luminance": 0.28527
}

Semantic roles & 50–950 ramp

primary

#648FEE

secondary

#EDDFC0

accent

#9B09DD

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #648FEE

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

Preview Lab → · Contrast checker → · Palette generator →