#648CE3#648CE3

#648CE3 is a light, vivid blue. Relative luminance 0.270; OKLCH L 65.0% C 0.138 H 264.3°. Best body text is #000000 at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#648CE3
RGB	rgb(100, 140, 227)
HSL	hsl(221, 69%, 64%)
HSV	hsv(221, 56%, 89%)
CMYK	cmyk(55.9%, 38.3%, 0%, 11%)
CIE-LAB	lab(58.98, 11.44, -48.42)
CIE-LCH	lch(58.98, 49.75, 283.29°)
OKLab	oklab(65.02% -0.0138 -0.1373)
OKLCH	oklch(65.02% 0.138 264.3)
XYZ	xyz(28.4940, 27.0093, 76.3699)
Luminance	0.2701 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648CE3 #E3BB64

analogous

#64CCE3 #648CE3 #7C64E3

triadic

#648CE3 #E3648C #8CE364

tetradic

#648CE3 #E364CC #E3BB64 #64E37C

square

#648CE3 #E364CC #E3BB64 #64E37C

split-complementary

#648CE3 #E37C64 #CCE364

monochromatic

#1F4CAD #3066DA #648CE3 #98B2EC #CCD9F6

Accessibility & contrast

On white

3.28

#648CE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.40

#648CE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648CE3

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648CE3	#FFFFFF	#000000	##000000
##648CE3	1.00	3.28	6.40	6.40
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.40	21.00	1.00	1.00
##000000	6.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6894E6

Deuteranopia (green-blind)

#5889E1

Tritanopia (blue-blind)

#089FAD

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #648ce3;
/* rgb */ color: rgb(100, 140, 227);
/* oklch */ color: oklch(65.0% 0.138 264.3);

Tailwind

colors: {
  custom: {
    50: '#99adec',
    500: '#648ce3',
    950: '#000000',
  },
}

SCSS

$custom: #648ce3;
$custom-light: #99adec;
$custom-dark: #000000;

JSON

{
  "hex": "#648ce3",
  "rgb": {
    "r": 100,
    "g": 140,
    "b": 227
  },
  "hsl": {
    "h": 221.102,
    "s": 69.399,
    "l": 64.118
  },
  "oklch": {
    "l": 0.65018,
    "c": 0.13795,
    "h": 264.3
  },
  "luminance": 0.27012
}

Semantic roles & 50–950 ramp

primary

#648CE3

secondary

#E8DABB

accent

#9614D1

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #648CE3

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

Preview Lab → · Contrast checker → · Palette generator →