#648EFB#648EFB

#648EFB is a light, vivid blue. Relative luminance 0.290; OKLCH L 66.8% C 0.168 H 266.1°. Best body text is #000000 at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#648EFB
RGB	rgb(100, 142, 251)
HSL	hsl(223, 95%, 69%)
HSV	hsv(223, 60%, 98%)
CMYK	cmyk(60.2%, 43.4%, 0%, 1.6%)
CIE-LAB	lab(60.80, 18.02, -58.80)
CIE-LCH	lch(60.80, 61.50, 287.04°)
OKLab	oklab(66.83% -0.0114 -0.1677)
OKLCH	oklch(66.83% 0.168 266.1)
XYZ	xyz(32.3352, 29.0176, 95.1450)
Luminance	0.2902 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648EFB #FBD164

analogous

#64DAFB #648EFB #8664FB

triadic

#648EFB #FB648E #8EFB64

tetradic

#648EFB #FB64DA #FBD164 #64FB86

square

#648EFB #FB64DA #FBD164 #64FB86

split-complementary

#648EFB #FB8664 #DAFB64

monochromatic

#0642DF #2863F9 #648EFB #A0B9FD #DBE5FE

Accessibility & contrast

On white

3.09

#648EFB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.80

#648EFB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648EFB

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648EFB	#FFFFFF	#000000	##000000
##648EFB	1.00	3.09	6.80	6.80
#FFFFFF	3.09	1.00	21.00	21.00
#000000	6.80	21.00	1.00	1.00
##000000	6.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C9AFF

Deuteranopia (green-blind)

#458CF9

Tritanopia (blue-blind)

#00A7B8

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #648efb;
/* rgb */ color: rgb(100, 142, 251);
/* oklch */ color: oklch(66.8% 0.168 266.1);

Tailwind

colors: {
  custom: {
    50: '#9caefd',
    500: '#648efb',
    950: '#000000',
  },
}

SCSS

$custom: #648efb;
$custom-light: #9caefd;
$custom-dark: #000000;

JSON

{
  "hex": "#648efb",
  "rgb": {
    "r": 100,
    "g": 142,
    "b": 251
  },
  "hsl": {
    "h": 223.311,
    "s": 94.969,
    "l": 68.824
  },
  "oklch": {
    "l": 0.66831,
    "c": 0.16804,
    "h": 266.1
  },
  "luminance": 0.2902
}

Semantic roles & 50–950 ramp

primary

#648EFB

secondary

#F4E7C7

accent

#A600E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #648EFB

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

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