#648FE9#648FE9

#648FE9 is a light, vivid blue. Relative luminance 0.282; OKLCH L 66.0% C 0.143 H 263.7°. Best body text is #000000 at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#648FE9
RGB	rgb(100, 143, 233)
HSL	hsl(221, 75%, 65%)
HSV	hsv(221, 57%, 91%)
CMYK	cmyk(57.1%, 38.6%, 0%, 8.6%)
CIE-LAB	lab(60.10, 11.58, -49.98)
CIE-LCH	lch(60.10, 51.30, 283.05°)
OKLab	oklab(65.98% -0.0158 -0.1418)
OKLCH	oklch(65.98% 0.143 263.7)
XYZ	xyz(29.7809, 28.2350, 80.9555)
Luminance	0.2824 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648FE9 #E9BE64

analogous

#64D1E9 #648FE9 #7C64E9

triadic

#648FE9 #E9648F #8FE964

tetradic

#648FE9 #E964D1 #E9BE64 #64E97C

square

#648FE9 #E964D1 #E9BE64 #64E97C

split-complementary

#648FE9 #E97C64 #D1E964

monochromatic

#1A4DB8 #2E68E1 #648FE9 #9AB6F1 #CFDCF8

Accessibility & contrast

On white

3.16

#648FE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.65

#648FE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648FE9

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648FE9	#FFFFFF	#000000	##000000
##648FE9	1.00	3.16	6.65	6.65
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.65	21.00	1.00	1.00
##000000	6.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6997ED

Deuteranopia (green-blind)

#588BE7

Tritanopia (blue-blind)

#00A3B1

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #648fe9;
/* rgb */ color: rgb(100, 143, 233);
/* oklch */ color: oklch(66.0% 0.143 263.7);

Tailwind

colors: {
  custom: {
    50: '#9aaff0',
    500: '#648fe9',
    950: '#000000',
  },
}

SCSS

$custom: #648fe9;
$custom-light: #9aaff0;
$custom-dark: #000000;

JSON

{
  "hex": "#648fe9",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 233
  },
  "hsl": {
    "h": 220.602,
    "s": 75.141,
    "l": 65.294
  },
  "oklch": {
    "l": 0.65982,
    "c": 0.14266,
    "h": 263.7
  },
  "luminance": 0.28237
}

Semantic roles & 50–950 ramp

primary

#648FE9

secondary

#EBDCBE

accent

#960ED7

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #648FE9

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

Preview Lab → · Contrast checker → · Palette generator →