#648BDF#648BDF

#648BDF is a light, vivid blue. Relative luminance 0.265; OKLCH L 64.6% C 0.134 H 264.2°. Best body text is #000000 at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#648BDF
RGB	rgb(100, 139, 223)
HSL	hsl(221, 66%, 63%)
HSV	hsv(221, 55%, 87%)
CMYK	cmyk(55.2%, 37.7%, 0%, 12.5%)
CIE-LAB	lab(58.51, 10.75, -46.94)
CIE-LCH	lch(58.51, 48.15, 282.90°)
OKLab	oklab(64.58% -0.0136 -0.1329)
OKLCH	oklch(64.58% 0.134 264.2)
XYZ	xyz(27.8029, 26.5001, 73.4476)
Luminance	0.2650 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BDF #DFB864

analogous

#64C8DF #648BDF #7A64DF

triadic

#648BDF #DF648B #8BDF64

tetradic

#648BDF #DF64C8 #DFB864 #64DF7A

square

#648BDF #DF64C8 #DFB864 #64DF7A

split-complementary

#648BDF #DF7A64 #C8DF64

monochromatic

#224CA6 #3165D5 #648BDF #97B1E9 #C9D7F4

Accessibility & contrast

On white

3.33

#648BDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.30

#648BDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BDF

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BDF	#FFFFFF	#000000	##000000
##648BDF	1.00	3.33	6.30	6.30
#FFFFFF	3.33	1.00	21.00	21.00
#000000	6.30	21.00	1.00	1.00
##000000	6.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6993E2

Deuteranopia (green-blind)

#5988DD

Tritanopia (blue-blind)

#169DAA

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #648bdf;
/* rgb */ color: rgb(100, 139, 223);
/* oklch */ color: oklch(64.6% 0.134 264.2);

Tailwind

colors: {
  custom: {
    50: '#98ace9',
    500: '#648bdf',
    950: '#000000',
  },
}

SCSS

$custom: #648bdf;
$custom-light: #98ace9;
$custom-dark: #000000;

JSON

{
  "hex": "#648bdf",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 223
  },
  "hsl": {
    "h": 220.976,
    "s": 65.775,
    "l": 63.333
  },
  "oklch": {
    "l": 0.64584,
    "c": 0.13363,
    "h": 264.2
  },
  "luminance": 0.26502
}

Semantic roles & 50–950 ramp

primary

#648BDF

secondary

#E5D7B9

accent

#9418CE

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #648BDF

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

Preview Lab → · Contrast checker → · Palette generator →