#648CDD#648CDD

#648CDD is a light, vivid blue. Relative luminance 0.267; OKLCH L 64.7% C 0.130 H 263.3°. Best body text is #000000 at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#648CDD
RGB	rgb(100, 140, 221)
HSL	hsl(220, 64%, 63%)
HSV	hsv(220, 55%, 87%)
CMYK	cmyk(54.8%, 36.7%, 0%, 13.3%)
CIE-LAB	lab(58.68, 9.52, -45.55)
CIE-LCH	lch(58.68, 46.54, 281.81°)
OKLab	oklab(64.69% -0.0151 -0.1289)
OKLCH	oklch(64.69% 0.13 263.3)
XYZ	xyz(27.6803, 26.6838, 72.0844)
Luminance	0.2669 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648CDD #DDB564

analogous

#64C9DD #648CDD #7864DD

triadic

#648CDD #DD648C #8CDD64

tetradic

#648CDD #DD64C9 #DDB564 #64DD78

square

#648CDD #DD64C9 #DDB564 #64DD78

split-complementary

#648CDD #DD7864 #C9DD64

monochromatic

#244EA3 #3267D2 #648CDD #96B1E8 #C8D6F3

Accessibility & contrast

On white

3.31

#648CDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.34

#648CDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648CDD

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648CDD	#FFFFFF	#000000	##000000
##648CDD	1.00	3.31	6.34	6.34
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.34	21.00	1.00	1.00
##000000	6.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B93E0

Deuteranopia (green-blind)

#5C88DB

Tritanopia (blue-blind)

#1A9EAA

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #648cdd;
/* rgb */ color: rgb(100, 140, 221);
/* oklch */ color: oklch(64.7% 0.130 263.3);

Tailwind

colors: {
  custom: {
    50: '#98ade8',
    500: '#648cdd',
    950: '#000000',
  },
}

SCSS

$custom: #648cdd;
$custom-light: #98ade8;
$custom-dark: #000000;

JSON

{
  "hex": "#648cdd",
  "rgb": {
    "r": 100,
    "g": 140,
    "b": 221
  },
  "hsl": {
    "h": 220.165,
    "s": 64.021,
    "l": 62.941
  },
  "oklch": {
    "l": 0.64685,
    "c": 0.12977,
    "h": 263.3
  },
  "luminance": 0.26686
}

Semantic roles & 50–950 ramp

primary

#648CDD

secondary

#E4D6B9

accent

#911ACC

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #648CDD

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

Preview Lab → · Contrast checker → · Palette generator →