#648DFB#648DFB

#648DFB is a light, vivid blue. Relative luminance 0.287; OKLCH L 66.6% C 0.169 H 266.5°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#648DFB
RGB	rgb(100, 141, 251)
HSL	hsl(224, 95%, 69%)
HSV	hsv(224, 60%, 98%)
CMYK	cmyk(60.2%, 43.8%, 0%, 1.6%)
CIE-LAB	lab(60.53, 18.62, -59.22)
CIE-LCH	lch(60.53, 62.08, 287.45°)
OKLab	oklab(66.63% -0.0104 -0.1689)
OKLCH	oklch(66.63% 0.169 266.5)
XYZ	xyz(32.1870, 28.7214, 95.0957)
Luminance	0.2872 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648DFB #FBD264

analogous

#64D8FB #648DFB #8764FB

triadic

#648DFB #FB648D #8DFB64

tetradic

#648DFB #FB64D8 #FBD264 #64FB87

square

#648DFB #FB64D8 #FBD264 #64FB87

split-complementary

#648DFB #FB8764 #D8FB64

monochromatic

#0641DF #2861F9 #648DFB #A0B9FD #DBE5FE

Accessibility & contrast

On white

3.11

#648DFB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#648DFB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648DFB

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648DFB	#FFFFFF	#000000	##000000
##648DFB	1.00	3.11	6.74	6.74
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A99FF

Deuteranopia (green-blind)

#438CF9

Tritanopia (blue-blind)

#00A6B8

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #648dfb;
/* rgb */ color: rgb(100, 141, 251);
/* oklch */ color: oklch(66.6% 0.169 266.5);

Tailwind

colors: {
  custom: {
    50: '#9cadfd',
    500: '#648dfb',
    950: '#000000',
  },
}

SCSS

$custom: #648dfb;
$custom-light: #9cadfd;
$custom-dark: #000000;

JSON

{
  "hex": "#648dfb",
  "rgb": {
    "r": 100,
    "g": 141,
    "b": 251
  },
  "hsl": {
    "h": 223.709,
    "s": 94.969,
    "l": 68.824
  },
  "oklch": {
    "l": 0.6663,
    "c": 0.16923,
    "h": 266.5
  },
  "luminance": 0.28724
}

Semantic roles & 50–950 ramp

primary

#648DFB

secondary

#F4E8C7

accent

#A700E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #648DFB

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

Preview Lab → · Contrast checker → · Palette generator →