#648FDD#648FDD

#648FDD is a light, vivid blue. Relative luminance 0.276; OKLCH L 65.3% C 0.126 H 261.6°. Best body text is #000000 at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#648FDD
RGB	rgb(100, 143, 221)
HSL	hsl(219, 64%, 63%)
HSV	hsv(219, 55%, 87%)
CMYK	cmyk(54.8%, 35.3%, 0%, 13.3%)
CIE-LAB	lab(59.50, 7.75, -44.26)
CIE-LCH	lch(59.50, 44.93, 279.94°)
OKLab	oklab(65.32% -0.0185 -0.1251)
OKLCH	oklch(65.32% 0.126 261.6)
XYZ	xyz(28.1247, 27.5725, 72.2325)
Luminance	0.2757 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648FDD #DDB264

analogous

#64CBDD #648FDD #7664DD

triadic

#648FDD #DD648F #8FDD64

tetradic

#648FDD #DD64CB #DDB264 #64DD76

square

#648FDD #DD64CB #DDB264 #64DD76

split-complementary

#648FDD #DD7664 #CBDD64

monochromatic

#2451A3 #326BD2 #648FDD #96B3E8 #C8D8F3

Accessibility & contrast

On white

3.22

#648FDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.52

#648FDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648FDD

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648FDD	#FFFFFF	#000000	##000000
##648FDD	1.00	3.22	6.52	6.52
#FFFFFF	3.22	1.00	21.00	21.00
#000000	6.52	21.00	1.00	1.00
##000000	6.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F95E0

Deuteranopia (green-blind)

#618ADB

Tritanopia (blue-blind)

#19A0AC

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #648fdd;
/* rgb */ color: rgb(100, 143, 221);
/* oklch */ color: oklch(65.3% 0.126 261.6);

Tailwind

colors: {
  custom: {
    50: '#98afe8',
    500: '#648fdd',
    950: '#000000',
  },
}

SCSS

$custom: #648fdd;
$custom-light: #98afe8;
$custom-dark: #000000;

JSON

{
  "hex": "#648fdd",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 221
  },
  "hsl": {
    "h": 218.678,
    "s": 64.021,
    "l": 62.941
  },
  "oklch": {
    "l": 0.65321,
    "c": 0.12644,
    "h": 261.6
  },
  "luminance": 0.27575
}

Semantic roles & 50–950 ramp

primary

#648FDD

secondary

#E4D5B9

accent

#8D1ACC

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #648FDD

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

Preview Lab → · Contrast checker → · Palette generator →