#648FEF#648FEF

#648FEF is a light, vivid blue. Relative luminance 0.286; OKLCH L 66.3% C 0.151 H 264.5°. Best body text is #000000 at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#648FEF
RGB	rgb(100, 143, 239)
HSL	hsl(221, 81%, 66%)
HSV	hsv(221, 58%, 94%)
CMYK	cmyk(58.2%, 40.2%, 0%, 6.3%)
CIE-LAB	lab(60.41, 13.52, -52.80)
CIE-LCH	lch(60.41, 54.51, 284.36°)
OKLab	oklab(66.33% -0.0145 -0.1501)
OKLCH	oklch(66.33% 0.151 264.5)
XYZ	xyz(30.6526, 28.5837, 85.5465)
Luminance	0.2859 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648FEF #EFC464

analogous

#64D5EF #648FEF #7F64EF

triadic

#648FEF #EF648F #8FEF64

tetradic

#648FEF #EF64D5 #EFC464 #64EF7F

square

#648FEF #EF64D5 #EFC464 #64EF7F

split-complementary

#648FEF #EF7F64 #D5EF64

monochromatic

#144BC4 #2D67E9 #648FEF #9BB7F5 #D3DFFA

Accessibility & contrast

On white

3.13

#648FEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.72

#648FEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648FEF

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648FEF	#FFFFFF	#000000	##000000
##648FEF	1.00	3.13	6.72	6.72
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.72	21.00	1.00	1.00
##000000	6.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6698F3

Deuteranopia (green-blind)

#538CED

Tritanopia (blue-blind)

#00A4B3

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #648fef;
/* rgb */ color: rgb(100, 143, 239);
/* oklch */ color: oklch(66.3% 0.151 264.5);

Tailwind

colors: {
  custom: {
    50: '#9aaff5',
    500: '#648fef',
    950: '#000000',
  },
}

SCSS

$custom: #648fef;
$custom-light: #9aaff5;
$custom-dark: #000000;

JSON

{
  "hex": "#648fef",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 239
  },
  "hsl": {
    "h": 221.439,
    "s": 81.287,
    "l": 66.471
  },
  "oklch": {
    "l": 0.66325,
    "c": 0.15076,
    "h": 264.5
  },
  "luminance": 0.28586
}

Semantic roles & 50–950 ramp

primary

#648FEF

secondary

#EEE0C1

accent

#9C08DE

background

#FAFAFF

surface

#F3F4FE

border

#CDCED6

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #648FEF

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

Preview Lab → · Contrast checker → · Palette generator →