#646EF3#646EF3

#646EF3 is a mid, vivid blue. Relative luminance 0.203; OKLCH L 60.2% C 0.197 H 275.5°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#646EF3
RGB	rgb(100, 110, 243)
HSL	hsl(236, 86%, 67%)
HSV	hsv(236, 59%, 95%)
CMYK	cmyk(58.8%, 54.7%, 0%, 4.7%)
CIE-LAB	lab(52.21, 34.70, -68.18)
CIE-LCH	lch(52.21, 76.50, 296.97°)
OKLab	oklab(60.17% 0.019 -0.1956)
OKLCH	oklch(60.17% 0.197 275.5)
XYZ	xyz(27.0039, 20.3302, 87.2777)
Luminance	0.2033 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EF3 #F3E964

analogous

#64B6F3 #646EF3 #A164F3

triadic

#646EF3 #F3646E #6EF364

tetradic

#646EF3 #F364B6 #F3E964 #64F3A1

square

#646EF3 #F364B6 #F3E964 #64F3A1

split-complementary

#646EF3 #F3A164 #B6F364

monochromatic

#101DCD #2B39EF #646EF3 #9DA3F7 #D6D8FC

Accessibility & contrast

On white

4.14

#646EF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#646EF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646EF3

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EF3	#FFFFFF	#000000	##000000
##646EF3	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0083F8

Deuteranopia (green-blind)

#0077F0

Tritanopia (blue-blind)

#008DA6

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #646ef3;
/* rgb */ color: rgb(100, 110, 243);
/* oklch */ color: oklch(60.2% 0.197 275.5);

Tailwind

colors: {
  custom: {
    50: '#9c97f8',
    500: '#646ef3',
    950: '#000000',
  },
}

SCSS

$custom: #646ef3;
$custom-light: #9c97f8;
$custom-dark: #000000;

JSON

{
  "hex": "#646ef3",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 243
  },
  "hsl": {
    "h": 235.804,
    "s": 85.629,
    "l": 67.255
  },
  "oklch": {
    "l": 0.60167,
    "c": 0.19654,
    "h": 275.5
  },
  "luminance": 0.20332
}

Semantic roles & 50–950 ramp

primary

#646EF3

secondary

#F0EDC3

accent

#D303E2

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646EF3

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

Preview Lab → · Contrast checker → · Palette generator →