#646FE4#646FE4

#646FE4 is a mid, vivid blue. Relative luminance 0.197; OKLCH L 59.3% C 0.175 H 275.6°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#646FE4
RGB	rgb(100, 111, 228)
HSL	hsl(235, 70%, 64%)
HSV	hsv(235, 56%, 89%)
CMYK	cmyk(56.1%, 51.3%, 0%, 10.6%)
CIE-LAB	lab(51.47, 29.28, -60.98)
CIE-LCH	lch(51.47, 67.64, 295.65°)
OKLab	oklab(59.3% 0.0172 -0.1744)
OKLCH	oklch(59.3% 0.175 275.6)
XYZ	xyz(24.9391, 19.6779, 75.8678)
Luminance	0.1968 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FE4 #E4D964

analogous

#64AFE4 #646FE4 #9964E4

triadic

#646FE4 #E4646F #6FE464

tetradic

#646FE4 #E464AF #E4D964 #64E499

square

#646FE4 #E464AF #E4D964 #64E499

split-complementary

#646FE4 #E49964 #AFE464

monochromatic

#1F2BAF #303FDB #646FE4 #989FED #CCD0F6

Accessibility & contrast

On white

4.25

#646FE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#646FE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646FE4

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FE4	#FFFFFF	#000000	##000000
##646FE4	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E80E8

Deuteranopia (green-blind)

#1475E2

Tritanopia (blue-blind)

#188A9F

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #646fe4;
/* rgb */ color: rgb(100, 111, 228);
/* oklch */ color: oklch(59.3% 0.175 275.6);

Tailwind

colors: {
  custom: {
    50: '#9a98ed',
    500: '#646fe4',
    950: '#000000',
  },
}

SCSS

$custom: #646fe4;
$custom-light: #9a98ed;
$custom-dark: #000000;

JSON

{
  "hex": "#646fe4",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 228
  },
  "hsl": {
    "h": 234.844,
    "s": 70.33,
    "l": 64.314
  },
  "oklch": {
    "l": 0.59302,
    "c": 0.17526,
    "h": 275.6
  },
  "luminance": 0.1968
}

Semantic roles & 50–950 ramp

primary

#646FE4

secondary

#E8E4BC

accent

#C213D2

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646FE4

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

Preview Lab → · Contrast checker → · Palette generator →