#648DDF#648DDF

#648DDF is a light, vivid blue. Relative luminance 0.271; OKLCH L 65.0% C 0.131 H 263.1°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#648DDF
RGB	rgb(100, 141, 223)
HSL	hsl(220, 66%, 63%)
HSV	hsv(220, 55%, 87%)
CMYK	cmyk(55.2%, 36.8%, 0%, 12.5%)
CIE-LAB	lab(59.05, 9.57, -46.08)
CIE-LCH	lch(59.05, 47.06, 281.73°)
OKLab	oklab(65.01% -0.0158 -0.1304)
OKLCH	oklch(65.01% 0.131 263.1)
XYZ	xyz(28.0952, 27.0846, 73.5451)
Luminance	0.2709 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648DDF #DFB664

analogous

#64CADF #648DDF #7864DF

triadic

#648DDF #DF648D #8DDF64

tetradic

#648DDF #DF64CA #DFB664 #64DF78

square

#648DDF #DF64CA #DFB664 #64DF78

split-complementary

#648DDF #DF7864 #CADF64

monochromatic

#224EA6 #3168D5 #648DDF #97B2E9 #C9D8F4

Accessibility & contrast

On white

3.27

#648DDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#648DDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648DDF

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648DDF	#FFFFFF	#000000	##000000
##648DDF	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C94E2

Deuteranopia (green-blind)

#5C89DD

Tritanopia (blue-blind)

#159FAB

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #648ddf;
/* rgb */ color: rgb(100, 141, 223);
/* oklch */ color: oklch(65.0% 0.131 263.1);

Tailwind

colors: {
  custom: {
    50: '#98aee9',
    500: '#648ddf',
    950: '#000000',
  },
}

SCSS

$custom: #648ddf;
$custom-light: #98aee9;
$custom-dark: #000000;

JSON

{
  "hex": "#648ddf",
  "rgb": {
    "r": 100,
    "g": 141,
    "b": 223
  },
  "hsl": {
    "h": 220,
    "s": 65.775,
    "l": 63.333
  },
  "oklch": {
    "l": 0.65006,
    "c": 0.13136,
    "h": 263.1
  },
  "luminance": 0.27087
}

Semantic roles & 50–950 ramp

primary

#648DDF

secondary

#E5D7B9

accent

#9118CE

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #648DDF

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

Preview Lab → · Contrast checker → · Palette generator →