#648BE1#648BE1

#648BE1 is a light, vivid blue. Relative luminance 0.266; OKLCH L 64.7% C 0.136 H 264.5°. Best body text is #000000 at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#648BE1
RGB	rgb(100, 139, 225)
HSL	hsl(221, 68%, 64%)
HSV	hsv(221, 56%, 88%)
CMYK	cmyk(55.6%, 38.2%, 0%, 11.8%)
CIE-LAB	lab(58.61, 11.39, -47.89)
CIE-LCH	lch(58.61, 49.23, 283.38°)
OKLab	oklab(64.7% -0.0131 -0.1357)
OKLCH	oklch(64.7% 0.136 264.5)
XYZ	xyz(28.0742, 26.6086, 74.8761)
Luminance	0.2661 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BE1 #E1BA64

analogous

#64C9E1 #648BE1 #7B64E1

triadic

#648BE1 #E1648B #8BE164

tetradic

#648BE1 #E164C9 #E1BA64 #64E17B

square

#648BE1 #E164C9 #E1BA64 #64E17B

split-complementary

#648BE1 #E17B64 #C9E164

monochromatic

#214CAA #3165D7 #648BE1 #97B1EB #CBD8F5

Accessibility & contrast

On white

3.32

#648BE1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.32

#648BE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BE1

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BE1	#FFFFFF	#000000	##000000
##648BE1	1.00	3.32	6.32	6.32
#FFFFFF	3.32	1.00	21.00	21.00
#000000	6.32	21.00	1.00	1.00
##000000	6.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6793E4

Deuteranopia (green-blind)

#5888DF

Tritanopia (blue-blind)

#119EAB

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #648be1;
/* rgb */ color: rgb(100, 139, 225);
/* oklch */ color: oklch(64.7% 0.136 264.5);

Tailwind

colors: {
  custom: {
    50: '#99aceb',
    500: '#648be1',
    950: '#000000',
  },
}

SCSS

$custom: #648be1;
$custom-light: #99aceb;
$custom-dark: #000000;

JSON

{
  "hex": "#648be1",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 225
  },
  "hsl": {
    "h": 221.28,
    "s": 67.568,
    "l": 63.725
  },
  "oklch": {
    "l": 0.64696,
    "c": 0.13636,
    "h": 264.5
  },
  "luminance": 0.26611
}

Semantic roles & 50–950 ramp

primary

#648BE1

secondary

#E6D9BA

accent

#9616CF

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #648BE1

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

Preview Lab → · Contrast checker → · Palette generator →