#646EE4#646EE4

#646EE4 is a mid, vivid blue. Relative luminance 0.195; OKLCH L 59.1% C 0.177 H 275.9°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#646EE4
RGB	rgb(100, 110, 228)
HSL	hsl(235, 70%, 64%)
HSV	hsv(235, 56%, 89%)
CMYK	cmyk(56.1%, 51.8%, 0%, 10.6%)
CIE-LAB	lab(51.22, 29.88, -61.38)
CIE-LCH	lch(51.22, 68.27, 295.96°)
OKLab	oklab(59.11% 0.0183 -0.1756)
OKLCH	oklch(59.11% 0.177 275.9)
XYZ	xyz(24.8305, 19.4609, 75.8316)
Luminance	0.1946 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EE4 #E4DA64

analogous

#64AEE4 #646EE4 #9A64E4

triadic

#646EE4 #E4646E #6EE464

tetradic

#646EE4 #E464AE #E4DA64 #64E49A

square

#646EE4 #E464AE #E4DA64 #64E49A

split-complementary

#646EE4 #E49A64 #AEE464

monochromatic

#1F2AAF #303DDB #646EE4 #989FED #CCD0F6

Accessibility & contrast

On white

4.29

#646EE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#646EE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646EE4

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EE4	#FFFFFF	#000000	##000000
##646EE4	1.00	4.29	4.89	4.89
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B80E8

Deuteranopia (green-blind)

#0D75E2

Tritanopia (blue-blind)

#18899E

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #646ee4;
/* rgb */ color: rgb(100, 110, 228);
/* oklch */ color: oklch(59.1% 0.177 275.9);

Tailwind

colors: {
  custom: {
    50: '#9a97ed',
    500: '#646ee4',
    950: '#000000',
  },
}

SCSS

$custom: #646ee4;
$custom-light: #9a97ed;
$custom-dark: #000000;

JSON

{
  "hex": "#646ee4",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 228
  },
  "hsl": {
    "h": 235.313,
    "s": 70.33,
    "l": 64.314
  },
  "oklch": {
    "l": 0.59114,
    "c": 0.17655,
    "h": 275.9
  },
  "luminance": 0.19463
}

Semantic roles & 50–950 ramp

primary

#646EE4

secondary

#E8E5BC

accent

#C313D2

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646EE4

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

Preview Lab → · Contrast checker → · Palette generator →