#646CFD#646CFD

#646CFD is a mid, highly saturated blue. Relative luminance 0.205; OKLCH L 60.5% C 0.212 H 275.7°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#646CFD
RGB	rgb(100, 108, 253)
HSL	hsl(237, 97%, 69%)
HSV	hsv(237, 60%, 99%)
CMYK	cmyk(60.5%, 57.3%, 0%, 0.8%)
CIE-LAB	lab(52.42, 39.11, -73.39)
CIE-LCH	lch(52.42, 83.16, 298.05°)
OKLab	oklab(60.55% 0.021 -0.2109)
OKLCH	oklch(60.55% 0.212 275.7)
XYZ	xyz(28.3419, 20.5241, 95.3775)
Luminance	0.2053 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CFD #FDF564

analogous

#64B9FD #646CFD #A964FD

triadic

#646CFD #FD646C #6CFD64

tetradic

#646CFD #FD64B9 #FDF564 #64FDA9

square

#646CFD #FD64B9 #FDF564 #64FDA9

split-complementary

#646CFD #FDA964 #B9FD64

monochromatic

#030FE4 #2833FC #646CFD #A0A5FE #DDDFFF

Accessibility & contrast

On white

4.11

#646CFD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#646CFD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646CFD

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CFD	#FFFFFF	#000000	##000000
##646CFD	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0084FF

Deuteranopia (green-blind)

#0077FA

Tritanopia (blue-blind)

#008FAA

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #646cfd;
/* rgb */ color: rgb(100, 108, 253);
/* oklch */ color: oklch(60.5% 0.212 275.7);

Tailwind

colors: {
  custom: {
    50: '#9e96ff',
    500: '#646cfd',
    950: '#000000',
  },
}

SCSS

$custom: #646cfd;
$custom-light: #9e96ff;
$custom-dark: #000000;

JSON

{
  "hex": "#646cfd",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 253
  },
  "hsl": {
    "h": 236.863,
    "s": 97.452,
    "l": 69.216
  },
  "oklch": {
    "l": 0.60547,
    "c": 0.21199,
    "h": 275.7
  },
  "luminance": 0.20526
}

Semantic roles & 50–950 ramp

primary

#646CFD

secondary

#F5F2C8

accent

#DA00E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#100D18

muted

#7F7E86

Preview Lab

Preview with #646CFD

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

Preview Lab → · Contrast checker → · Palette generator →