#648FE5#648FE5

#648FE5 is a light, vivid blue. Relative luminance 0.280; OKLCH L 65.8% C 0.137 H 263.0°. Best body text is #000000 at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#648FE5
RGB	rgb(100, 143, 229)
HSL	hsl(220, 71%, 65%)
HSV	hsv(220, 56%, 90%)
CMYK	cmyk(56.3%, 37.6%, 0%, 10.2%)
CIE-LAB	lab(59.90, 10.30, -48.08)
CIE-LCH	lch(59.90, 49.17, 282.09°)
OKLab	oklab(65.76% -0.0166 -0.1362)
OKLCH	oklch(65.76% 0.137 263)
XYZ	xyz(29.2160, 28.0090, 77.9802)
Luminance	0.2801 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648FE5 #E5BA64

analogous

#64D0E5 #648FE5 #7A64E5

triadic

#648FE5 #E5648F #8FE564

tetradic

#648FE5 #E564D0 #E5BA64 #64E57A

square

#648FE5 #E564D0 #E5BA64 #64E57A

split-complementary

#648FE5 #E57A64 #D0E564

monochromatic

#1E4FB1 #3069DC #648FE5 #98B5EE #CDDBF7

Accessibility & contrast

On white

3.18

#648FE5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.60

#648FE5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648FE5

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648FE5	#FFFFFF	#000000	##000000
##648FE5	1.00	3.18	6.60	6.60
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.60	21.00	1.00	1.00
##000000	6.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B97E8

Deuteranopia (green-blind)

#5B8BE3

Tritanopia (blue-blind)

#00A2AF

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #648fe5;
/* rgb */ color: rgb(100, 143, 229);
/* oklch */ color: oklch(65.8% 0.137 263.0);

Tailwind

colors: {
  custom: {
    50: '#99afed',
    500: '#648fe5',
    950: '#000000',
  },
}

SCSS

$custom: #648fe5;
$custom-light: #99afed;
$custom-dark: #000000;

JSON

{
  "hex": "#648fe5",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 229
  },
  "hsl": {
    "h": 220,
    "s": 71.271,
    "l": 64.51
  },
  "oklch": {
    "l": 0.65758,
    "c": 0.13726,
    "h": 263
  },
  "luminance": 0.28011
}

Semantic roles & 50–950 ramp

primary

#648FE5

secondary

#E9DABC

accent

#9312D3

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #648FE5

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

Preview Lab → · Contrast checker → · Palette generator →