#648FFA#648FFA

#648FFA is a light, vivid blue. Relative luminance 0.293; OKLCH L 67.0% C 0.166 H 265.7°. Best body text is #000000 at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#648FFA
RGB	rgb(100, 143, 250)
HSL	hsl(223, 94%, 69%)
HSV	hsv(223, 60%, 98%)
CMYK	cmyk(60%, 42.8%, 0%, 2%)
CIE-LAB	lab(61.00, 17.10, -57.92)
CIE-LCH	lch(61.00, 60.39, 286.45°)
OKLab	oklab(66.97% -0.0125 -0.1651)
OKLCH	oklch(66.97% 0.166 265.7)
XYZ	xyz(32.3274, 29.2536, 94.3669)
Luminance	0.2926 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648FFA #FACF64

analogous

#64DAFA #648FFA #8464FA

triadic

#648FFA #FA648F #8FFA64

tetradic

#648FFA #FA64DA #FACF64 #64FA84

square

#648FFA #FA64DA #FACF64 #64FA84

split-complementary

#648FFA #FA8464 #DAFA64

monochromatic

#0744DC #2964F8 #648FFA #9FBAFC #DBE5FE

Accessibility & contrast

On white

3.07

#648FFA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.85

#648FFA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648FFA

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648FFA	#FFFFFF	#000000	##000000
##648FFA	1.00	3.07	6.85	6.85
#FFFFFF	3.07	1.00	21.00	21.00
#000000	6.85	21.00	1.00	1.00
##000000	6.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E9AFE

Deuteranopia (green-blind)

#488DF8

Tritanopia (blue-blind)

#00A7B8

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #648ffa;
/* rgb */ color: rgb(100, 143, 250);
/* oklch */ color: oklch(67.0% 0.166 265.7);

Tailwind

colors: {
  custom: {
    50: '#9caffc',
    500: '#648ffa',
    950: '#000000',
  },
}

SCSS

$custom: #648ffa;
$custom-light: #9caffc;
$custom-dark: #000000;

JSON

{
  "hex": "#648ffa",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 250
  },
  "hsl": {
    "h": 222.8,
    "s": 93.75,
    "l": 68.627
  },
  "oklch": {
    "l": 0.66973,
    "c": 0.16554,
    "h": 265.7
  },
  "luminance": 0.29256
}

Semantic roles & 50–950 ramp

primary

#648FFA

secondary

#F3E6C7

accent

#A400E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #648FFA

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

Preview Lab → · Contrast checker → · Palette generator →