#646FEF#646FEF

#646FEF is a mid, vivid blue. Relative luminance 0.203; OKLCH L 60.1% C 0.190 H 275.4°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#646FEF
RGB	rgb(100, 111, 239)
HSL	hsl(235, 81%, 66%)
HSV	hsv(235, 58%, 94%)
CMYK	cmyk(58.2%, 53.6%, 0%, 6.3%)
CIE-LAB	lab(52.18, 32.81, -65.99)
CIE-LCH	lch(52.18, 73.70, 296.43°)
OKLab	oklab(60.06% 0.0179 -0.1892)
OKLCH	oklch(60.06% 0.19 275.4)
XYZ	xyz(26.5149, 20.3082, 84.1673)
Luminance	0.2031 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FEF #EFE464

analogous

#64B5EF #646FEF #9F64EF

triadic

#646FEF #EF646F #6FEF64

tetradic

#646FEF #EF64B5 #EFE464 #64EF9F

square

#646FEF #EF64B5 #EFE464 #64EF9F

split-complementary

#646FEF #EF9F64 #B5EF64

monochromatic

#1422C4 #2D3BE9 #646FEF #9BA3F5 #D3D6FA

Accessibility & contrast

On white

4.15

#646FEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#646FEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646FEF

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FEF	#FFFFFF	#000000	##000000
##646FEF	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1983F3

Deuteranopia (green-blind)

#0077EC

Tritanopia (blue-blind)

#008DA4

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #646fef;
/* rgb */ color: rgb(100, 111, 239);
/* oklch */ color: oklch(60.1% 0.190 275.4);

Tailwind

colors: {
  custom: {
    50: '#9c98f5',
    500: '#646fef',
    950: '#000000',
  },
}

SCSS

$custom: #646fef;
$custom-light: #9c98f5;
$custom-dark: #000000;

JSON

{
  "hex": "#646fef",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 239
  },
  "hsl": {
    "h": 235.252,
    "s": 81.287,
    "l": 66.471
  },
  "oklch": {
    "l": 0.60064,
    "c": 0.19,
    "h": 275.4
  },
  "luminance": 0.2031
}

Semantic roles & 50–950 ramp

primary

#646FEF

secondary

#EEEAC1

accent

#CD08DE

background

#FAF9FF

surface

#F4F2FE

border

#CECCD6

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646FEF

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

Preview Lab → · Contrast checker → · Palette generator →