#648FEB#648FEB

#648FEB is a light, vivid blue. Relative luminance 0.284; OKLCH L 66.1% C 0.145 H 263.9°. Best body text is #000000 at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#648FEB
RGB	rgb(100, 143, 235)
HSL	hsl(221, 77%, 66%)
HSV	hsv(221, 57%, 92%)
CMYK	cmyk(57.4%, 39.1%, 0%, 7.8%)
CIE-LAB	lab(60.20, 12.23, -50.92)
CIE-LCH	lch(60.20, 52.37, 283.50°)
OKLab	oklab(66.1% -0.0153 -0.1446)
OKLCH	oklch(66.1% 0.145 263.9)
XYZ	xyz(30.0683, 28.3499, 82.4687)
Luminance	0.2835 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648FEB #EBC064

analogous

#64D2EB #648FEB #7C64EB

triadic

#648FEB #EB648F #8FEB64

tetradic

#648FEB #EB64D2 #EBC064 #64EB7C

square

#648FEB #EB64D2 #EBC064 #64EB7C

split-complementary

#648FEB #EB7C64 #D2EB64

monochromatic

#184DBC #2E68E4 #648FEB #9AB6F2 #D0DDF9

Accessibility & contrast

On white

3.15

#648FEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.67

#648FEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648FEB

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648FEB	#FFFFFF	#000000	##000000
##648FEB	1.00	3.15	6.67	6.67
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.67	21.00	1.00	1.00
##000000	6.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6898EF

Deuteranopia (green-blind)

#568BE9

Tritanopia (blue-blind)

#00A3B2

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #648feb;
/* rgb */ color: rgb(100, 143, 235);
/* oklch */ color: oklch(66.1% 0.145 263.9);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#648feb",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 235
  },
  "hsl": {
    "h": 220.889,
    "s": 77.143,
    "l": 65.686
  },
  "oklch": {
    "l": 0.66095,
    "c": 0.14537,
    "h": 263.9
  },
  "luminance": 0.28352
}

Semantic roles & 50–950 ramp

primary

#648FEB

secondary

#ECDEBF

accent

#980CD9

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #648FEB

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

Preview Lab → · Contrast checker → · Palette generator →