#646BE7#646BE7

#646BE7 is a mid, vivid blue. Relative luminance 0.190; OKLCH L 58.8% C 0.184 H 276.7°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#646BE7
RGB	rgb(100, 107, 231)
HSL	hsl(237, 73%, 65%)
HSV	hsv(237, 57%, 91%)
CMYK	cmyk(56.7%, 53.7%, 0%, 9.4%)
CIE-LAB	lab(50.68, 32.66, -63.94)
CIE-LCH	lch(50.68, 71.80, 297.06°)
OKLab	oklab(58.77% 0.0215 -0.1832)
OKLCH	oklch(58.77% 0.184 276.7)
XYZ	xyz(24.9324, 18.9925, 77.9379)
Luminance	0.1899 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646BE7 #E7E064

analogous

#64ACE7 #646BE7 #9F64E7

triadic

#646BE7 #E7646B #6BE764

tetradic

#646BE7 #E764AC #E7E064 #64E79F

square

#646BE7 #E764AC #E7E064 #64E79F

split-complementary

#646BE7 #E79F64 #ACE764

monochromatic

#1C24B5 #2F38DF #646BE7 #999EEF #CED0F7

Accessibility & contrast

On white

4.38

#646BE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#646BE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646BE7

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646BE7	#FFFFFF	#000000	##000000
##646BE7	1.00	4.38	4.80	4.80
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A7EEB

Deuteranopia (green-blind)

#0073E4

Tritanopia (blue-blind)

#12889F

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #646be7;
/* rgb */ color: rgb(100, 107, 231);
/* oklch */ color: oklch(58.8% 0.184 276.7);

Tailwind

colors: {
  custom: {
    50: '#9b95ef',
    500: '#646be7',
    950: '#000000',
  },
}

SCSS

$custom: #646be7;
$custom-light: #9b95ef;
$custom-dark: #000000;

JSON

{
  "hex": "#646be7",
  "rgb": {
    "r": 100,
    "g": 107,
    "b": 231
  },
  "hsl": {
    "h": 236.794,
    "s": 73.184,
    "l": 64.902
  },
  "oklch": {
    "l": 0.58769,
    "c": 0.18442,
    "h": 276.7
  },
  "luminance": 0.18994
}

Semantic roles & 50–950 ramp

primary

#646BE7

secondary

#EAE7BD

accent

#CB10D5

background

#FAF9FE

surface

#F4F1FD

border

#CECBD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646BE7

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

Preview Lab → · Contrast checker → · Palette generator →