#646AF8#646AF8

#646AF8 is a mid, highly saturated blue. Relative luminance 0.198; OKLCH L 59.8% C 0.208 H 276.3°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#646AF8
RGB	rgb(100, 106, 248)
HSL	hsl(238, 91%, 68%)
HSV	hsv(238, 60%, 97%)
CMYK	cmyk(59.7%, 57.3%, 0%, 2.7%)
CIE-LAB	lab(51.60, 38.70, -71.95)
CIE-LCH	lch(51.60, 81.70, 298.27°)
OKLab	oklab(59.83% 0.0228 -0.2067)
OKLCH	oklch(59.83% 0.208 276.3)
XYZ	xyz(27.3473, 19.7926, 91.1680)
Luminance	0.1979 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646AF8 #F8F264

analogous

#64B4F8 #646AF8 #A864F8

triadic

#646AF8 #F8646A #6AF864

tetradic

#646AF8 #F864B4 #F8F264 #64F8A8

square

#646AF8 #F864B4 #F8F264 #64F8A8

split-complementary

#646AF8 #F8A864 #B4F864

monochromatic

#0A12D8 #2932F5 #646AF8 #9FA2FB #D9DBFD

Accessibility & contrast

On white

4.23

#646AF8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#646AF8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646AF8

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646AF8	#FFFFFF	#000000	##000000
##646AF8	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0081FD

Deuteranopia (green-blind)

#0075F5

Tritanopia (blue-blind)

#008CA7

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #646af8;
/* rgb */ color: rgb(100, 106, 248);
/* oklch */ color: oklch(59.8% 0.208 276.3);

Tailwind

colors: {
  custom: {
    50: '#9d94fb',
    500: '#646af8',
    950: '#000000',
  },
}

SCSS

$custom: #646af8;
$custom-light: #9d94fb;
$custom-dark: #000000;

JSON

{
  "hex": "#646af8",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 248
  },
  "hsl": {
    "h": 237.568,
    "s": 91.358,
    "l": 68.235
  },
  "oklch": {
    "l": 0.59825,
    "c": 0.20798,
    "h": 276.3
  },
  "luminance": 0.19795
}

Semantic roles & 50–950 ramp

primary

#646AF8

secondary

#F2F1C5

accent

#DC00E6

background

#FAF9FF

surface

#F4F1FF

border

#CECBD7

text

#100D18

muted

#7F7E86

Preview Lab

Preview with #646AF8

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

Preview Lab → · Contrast checker → · Palette generator →