#648BDB#648BDB

#648BDB is a light, vivid blue. Relative luminance 0.263; OKLCH L 64.4% C 0.128 H 263.5°. Best body text is #000000 at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#648BDB
RGB	rgb(100, 139, 219)
HSL	hsl(220, 62%, 63%)
HSV	hsv(220, 54%, 86%)
CMYK	cmyk(54.3%, 36.5%, 0%, 14.1%)
CIE-LAB	lab(58.31, 9.48, -45.02)
CIE-LCH	lch(58.31, 46.01, 281.89°)
OKLab	oklab(64.36% -0.0145 -0.1273)
OKLCH	oklch(64.36% 0.128 263.5)
XYZ	xyz(27.2700, 26.2870, 70.6410)
Luminance	0.2629 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BDB #DBB464

analogous

#64C7DB #648BDB #7864DB

triadic

#648BDB #DB648B #8BDB64

tetradic

#648BDB #DB64C7 #DBB464 #64DB78

square

#648BDB #DB64C7 #DBB464 #64DB78

split-complementary

#648BDB #DB7864 #C7DB64

monochromatic

#254DA0 #3266CF #648BDB #96B0E7 #C7D5F2

Accessibility & contrast

On white

3.36

#648BDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.26

#648BDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BDB

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BDB	#FFFFFF	#000000	##000000
##648BDB	1.00	3.36	6.26	6.26
#FFFFFF	3.36	1.00	21.00	21.00
#000000	6.26	21.00	1.00	1.00
##000000	6.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B92DE

Deuteranopia (green-blind)

#5C87D9

Tritanopia (blue-blind)

#1F9DA9

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #648bdb;
/* rgb */ color: rgb(100, 139, 219);
/* oklch */ color: oklch(64.4% 0.128 263.5);

Tailwind

colors: {
  custom: {
    50: '#98ace6',
    500: '#648bdb',
    950: '#000000',
  },
}

SCSS

$custom: #648bdb;
$custom-light: #98ace6;
$custom-dark: #000000;

JSON

{
  "hex": "#648bdb",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 219
  },
  "hsl": {
    "h": 220.336,
    "s": 62.304,
    "l": 62.549
  },
  "oklch": {
    "l": 0.64364,
    "c": 0.12816,
    "h": 263.5
  },
  "luminance": 0.26289
}

Semantic roles & 50–950 ramp

primary

#648BDB

secondary

#E3D5B8

accent

#911BCA

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #648BDB

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

Preview Lab → · Contrast checker → · Palette generator →