#648EEB#648EEB

#648EEB is a light, vivid blue. Relative luminance 0.281; OKLCH L 65.9% C 0.147 H 264.4°. Best body text is #000000 at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#648EEB
RGB	rgb(100, 142, 235)
HSL	hsl(221, 77%, 66%)
HSV	hsv(221, 57%, 92%)
CMYK	cmyk(57.4%, 39.6%, 0%, 7.8%)
CIE-LAB	lab(59.93, 12.82, -51.35)
CIE-LCH	lch(59.93, 52.93, 284.02°)
OKLab	oklab(65.89% -0.0143 -0.1458)
OKLCH	oklch(65.89% 0.147 264.4)
XYZ	xyz(29.9188, 28.0510, 82.4189)
Luminance	0.2805 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648EEB #EBC164

analogous

#64D2EB #648EEB #7D64EB

triadic

#648EEB #EB648E #8EEB64

tetradic

#648EEB #EB64D2 #EBC164 #64EB7D

square

#648EEB #EB64D2 #EBC164 #64EB7D

split-complementary

#648EEB #EB7D64 #D2EB64

monochromatic

#184BBC #2E66E4 #648EEB #9AB6F2 #D0DDF9

Accessibility & contrast

On white

3.18

#648EEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.61

#648EEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648EEB

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648EEB	#FFFFFF	#000000	##000000
##648EEB	1.00	3.18	6.61	6.61
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.61	21.00	1.00	1.00
##000000	6.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6697EF

Deuteranopia (green-blind)

#558BE9

Tritanopia (blue-blind)

#00A3B1

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #648eeb;
/* rgb */ color: rgb(100, 142, 235);
/* oklch */ color: oklch(65.9% 0.147 264.4);

Tailwind

colors: {
  custom: {
    50: '#9aaef2',
    500: '#648eeb',
    950: '#000000',
  },
}

SCSS

$custom: #648eeb;
$custom-light: #9aaef2;
$custom-dark: #000000;

JSON

{
  "hex": "#648eeb",
  "rgb": {
    "r": 100,
    "g": 142,
    "b": 235
  },
  "hsl": {
    "h": 221.333,
    "s": 77.143,
    "l": 65.686
  },
  "oklch": {
    "l": 0.65888,
    "c": 0.14652,
    "h": 264.4
  },
  "luminance": 0.28053
}

Semantic roles & 50–950 ramp

primary

#648EEB

secondary

#ECDEBF

accent

#9A0CD9

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #648EEB

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

Preview Lab → · Contrast checker → · Palette generator →