#646DF1#646DF1

#646DF1 is a mid, vivid blue. Relative luminance 0.200; OKLCH L 59.8% C 0.195 H 275.8°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#646DF1
RGB	rgb(100, 109, 241)
HSL	hsl(236, 83%, 67%)
HSV	hsv(236, 59%, 95%)
CMYK	cmyk(58.5%, 54.8%, 0%, 5.5%)
CIE-LAB	lab(51.83, 34.66, -67.68)
CIE-LCH	lch(51.83, 76.04, 297.12°)
OKLab	oklab(59.84% 0.0199 -0.1941)
OKLCH	oklch(59.84% 0.195 275.8)
XYZ	xyz(26.5962, 19.9955, 85.6600)
Luminance	0.2000 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DF1 #F1E864

analogous

#64B4F1 #646DF1 #A264F1

triadic

#646DF1 #F1646D #6DF164

tetradic

#646DF1 #F164B4 #F1E864 #64F1A2

square

#646DF1 #F164B4 #F1E864 #64F1A2

split-complementary

#646DF1 #F1A264 #B4F164

monochromatic

#121EC8 #2C38EC #646DF1 #9CA2F6 #D4D7FB

Accessibility & contrast

On white

4.20

#646DF1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#646DF1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646DF1

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DF1	#FFFFFF	#000000	##000000
##646DF1	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0182F6

Deuteranopia (green-blind)

#0076EE

Tritanopia (blue-blind)

#008CA4

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #646df1;
/* rgb */ color: rgb(100, 109, 241);
/* oklch */ color: oklch(59.8% 0.195 275.8);

Tailwind

colors: {
  custom: {
    50: '#9c96f6',
    500: '#646df1',
    950: '#000000',
  },
}

SCSS

$custom: #646df1;
$custom-light: #9c96f6;
$custom-dark: #000000;

JSON

{
  "hex": "#646df1",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 241
  },
  "hsl": {
    "h": 236.17,
    "s": 83.432,
    "l": 66.863
  },
  "oklch": {
    "l": 0.59844,
    "c": 0.19516,
    "h": 275.8
  },
  "luminance": 0.19997
}

Semantic roles & 50–950 ramp

primary

#646DF1

secondary

#EFECC2

accent

#D206E0

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646DF1

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

Preview Lab → · Contrast checker → · Palette generator →