#648EEF#648EEF

#648EEF is a light, vivid blue. Relative luminance 0.283; OKLCH L 66.1% C 0.152 H 264.9°. Best body text is #000000 at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#648EEF
RGB	rgb(100, 142, 239)
HSL	hsl(222, 81%, 66%)
HSV	hsv(222, 58%, 94%)
CMYK	cmyk(58.2%, 40.6%, 0%, 6.3%)
CIE-LAB	lab(60.15, 14.11, -53.23)
CIE-LCH	lch(60.15, 55.07, 284.85°)
OKLab	oklab(66.12% -0.0135 -0.1513)
OKLCH	oklch(66.12% 0.152 264.9)
XYZ	xyz(30.5032, 28.2848, 85.4967)
Luminance	0.2829 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648EEF #EFC564

analogous

#64D3EF #648EEF #8064EF

triadic

#648EEF #EF648E #8EEF64

tetradic

#648EEF #EF64D3 #EFC564 #64EF80

square

#648EEF #EF64D3 #EFC564 #64EF80

split-complementary

#648EEF #EF8064 #D3EF64

monochromatic

#1449C4 #2D66E9 #648EEF #9BB6F5 #D3DFFA

Accessibility & contrast

On white

3.15

#648EEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.66

#648EEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648EEF

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648EEF	#FFFFFF	#000000	##000000
##648EEF	1.00	3.15	6.66	6.66
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.66	21.00	1.00	1.00
##000000	6.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6498F3

Deuteranopia (green-blind)

#518BED

Tritanopia (blue-blind)

#00A4B3

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #648eef;
/* rgb */ color: rgb(100, 142, 239);
/* oklch */ color: oklch(66.1% 0.152 264.9);

Tailwind

colors: {
  custom: {
    50: '#9aaef5',
    500: '#648eef',
    950: '#000000',
  },
}

SCSS

$custom: #648eef;
$custom-light: #9aaef5;
$custom-dark: #000000;

JSON

{
  "hex": "#648eef",
  "rgb": {
    "r": 100,
    "g": 142,
    "b": 239
  },
  "hsl": {
    "h": 221.871,
    "s": 81.287,
    "l": 66.471
  },
  "oklch": {
    "l": 0.66118,
    "c": 0.15192,
    "h": 264.9
  },
  "luminance": 0.28287
}

Semantic roles & 50–950 ramp

primary

#648EEF

secondary

#EEE0C1

accent

#9D08DE

background

#FAFAFF

surface

#F3F4FE

border

#CDCED6

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #648EEF

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

Preview Lab → · Contrast checker → · Palette generator →