#646DEE#646DEE

#646DEE is a mid, vivid blue. Relative luminance 0.198; OKLCH L 59.6% C 0.191 H 275.9°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#646DEE
RGB	rgb(100, 109, 238)
HSL	hsl(236, 80%, 66%)
HSV	hsv(236, 58%, 93%)
CMYK	cmyk(58%, 54.2%, 0%, 6.7%)
CIE-LAB	lab(51.63, 33.69, -66.33)
CIE-LCH	lch(51.63, 74.40, 296.93°)
OKLab	oklab(59.63% 0.0198 -0.1902)
OKLCH	oklch(59.63% 0.191 275.9)
XYZ	xyz(26.1518, 19.8177, 83.3194)
Luminance	0.1982 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DEE #EEE564

analogous

#64B2EE #646DEE #A064EE

triadic

#646DEE #EE646D #6DEE64

tetradic

#646DEE #EE64B2 #EEE564 #64EEA0

square

#646DEE #EE64B2 #EEE564 #64EEA0

split-complementary

#646DEE #EEA064 #B2EE64

monochromatic

#1521C2 #2D39E8 #646DEE #9BA1F4 #D2D5FA

Accessibility & contrast

On white

4.23

#646DEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#646DEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646DEE

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DEE	#FFFFFF	#000000	##000000
##646DEE	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)

#1081F2

Deuteranopia (green-blind)

#0075EB

Tritanopia (blue-blind)

#008BA3

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #646dee;
/* rgb */ color: rgb(100, 109, 238);
/* oklch */ color: oklch(59.6% 0.191 275.9);

Tailwind

colors: {
  custom: {
    50: '#9b96f4',
    500: '#646dee',
    950: '#000000',
  },
}

SCSS

$custom: #646dee;
$custom-light: #9b96f4;
$custom-dark: #000000;

JSON

{
  "hex": "#646dee",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 238
  },
  "hsl": {
    "h": 236.087,
    "s": 80.233,
    "l": 66.275
  },
  "oklch": {
    "l": 0.59629,
    "c": 0.1912,
    "h": 275.9
  },
  "luminance": 0.1982
}

Semantic roles & 50–950 ramp

primary

#646DEE

secondary

#EDEAC0

accent

#CF09DD

background

#FAF9FF

surface

#F4F2FE

border

#CECCD6

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646DEE

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

Preview Lab → · Contrast checker → · Palette generator →