#648CDB#648CDB

#648CDB is a light, vivid blue. Relative luminance 0.266; OKLCH L 64.6% C 0.127 H 262.9°. Best body text is #000000 at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#648CDB
RGB	rgb(100, 140, 219)
HSL	hsl(220, 62%, 63%)
HSV	hsv(220, 54%, 86%)
CMYK	cmyk(54.3%, 36.1%, 0%, 14.1%)
CIE-LAB	lab(58.58, 8.89, -44.59)
CIE-LCH	lch(58.58, 45.47, 281.27°)
OKLab	oklab(64.58% -0.0156 -0.1261)
OKLCH	oklch(64.58% 0.127 262.9)
XYZ	xyz(27.4155, 26.5779, 70.6894)
Luminance	0.2658 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648CDB #DBB364

analogous

#64C8DB #648CDB #7764DB

triadic

#648CDB #DB648C #8CDB64

tetradic

#648CDB #DB64C8 #DBB364 #64DB77

square

#648CDB #DB64C8 #DBB364 #64DB77

split-complementary

#648CDB #DB7764 #C8DB64

monochromatic

#254EA0 #3267CF #648CDB #96B1E7 #C7D6F2

Accessibility & contrast

On white

3.32

#648CDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.32

#648CDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648CDB

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648CDB	#FFFFFF	#000000	##000000
##648CDB	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)

#6C93DE

Deuteranopia (green-blind)

#5E88D9

Tritanopia (blue-blind)

#1E9DA9

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #648cdb;
/* rgb */ color: rgb(100, 140, 219);
/* oklch */ color: oklch(64.6% 0.127 262.9);

Tailwind

colors: {
  custom: {
    50: '#98ade6',
    500: '#648cdb',
    950: '#000000',
  },
}

SCSS

$custom: #648cdb;
$custom-light: #98ade6;
$custom-dark: #000000;

JSON

{
  "hex": "#648cdb",
  "rgb": {
    "r": 100,
    "g": 140,
    "b": 219
  },
  "hsl": {
    "h": 219.832,
    "s": 62.304,
    "l": 62.549
  },
  "oklch": {
    "l": 0.64576,
    "c": 0.12704,
    "h": 262.9
  },
  "luminance": 0.2658
}

Semantic roles & 50–950 ramp

primary

#648CDB

secondary

#E3D4B8

accent

#8F1BCA

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #648CDB

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

Preview Lab → · Contrast checker → · Palette generator →