#646FD7#646FD7

#646FD7 is a mid, vivid blue. Relative luminance 0.190; OKLCH L 58.4% C 0.157 H 275.9°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#646FD7
RGB	rgb(100, 111, 215)
HSL	hsl(234, 59%, 62%)
HSV	hsv(234, 53%, 84%)
CMYK	cmyk(53.5%, 48.4%, 0%, 15.7%)
CIE-LAB	lab(50.67, 25.13, -54.93)
CIE-LCH	lch(50.67, 60.40, 294.58°)
OKLab	oklab(58.44% 0.016 -0.1566)
OKLCH	oklch(58.44% 0.157 275.9)
XYZ	xyz(23.2018, 18.9830, 66.7183)
Luminance	0.1898 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FD7 #D7CC64

analogous

#64A9D7 #646FD7 #9364D7

triadic

#646FD7 #D7646F #6FD764

tetradic

#646FD7 #D764A9 #D7CC64 #64D793

square

#646FD7 #D764A9 #D7CC64 #64D793

split-complementary

#646FD7 #D79364 #A9D764

monochromatic

#283299 #3442CA #646FD7 #959CE4 #C5C9F0

Accessibility & contrast

On white

4.38

#646FD7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#646FD7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646FD7

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FD7	#FFFFFF	#000000	##000000
##646FD7	1.00	4.38	4.80	4.80
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E7EDB

Deuteranopia (green-blind)

#2F74D5

Tritanopia (blue-blind)

#2D8699

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #646fd7;
/* rgb */ color: rgb(100, 111, 215);
/* oklch */ color: oklch(58.4% 0.157 275.9);

Tailwind

colors: {
  custom: {
    50: '#9898e4',
    500: '#646fd7',
    950: '#000000',
  },
}

SCSS

$custom: #646fd7;
$custom-light: #9898e4;
$custom-dark: #000000;

JSON

{
  "hex": "#646fd7",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 215
  },
  "hsl": {
    "h": 234.261,
    "s": 58.974,
    "l": 61.765
  },
  "oklch": {
    "l": 0.58437,
    "c": 0.15744,
    "h": 275.9
  },
  "luminance": 0.18985
}

Semantic roles & 50–950 ramp

primary

#646FD7

secondary

#E1DDB6

accent

#B71FC7

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #646FD7

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

Preview Lab → · Contrast checker → · Palette generator →