#646EC8#646EC8

#646EC8 is a mid, vivid blue. Relative luminance 0.180; OKLCH L 57.3% C 0.138 H 276.4°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#646EC8
RGB	rgb(100, 110, 200)
HSL	hsl(234, 48%, 59%)
HSV	hsv(234, 50%, 78%)
CMYK	cmyk(50%, 45%, 0%, 21.6%)
CIE-LAB	lab(49.53, 21.01, -48.19)
CIE-LCH	lch(49.53, 52.58, 293.56°)
OKLab	oklab(57.29% 0.0153 -0.1369)
OKLCH	oklch(57.29% 0.138 276.4)
XYZ	xyz(21.2535, 18.0301, 56.9926)
Luminance	0.1803 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EC8 #C8BE64

analogous

#64A0C8 #646EC8 #8C64C8

triadic

#646EC8 #C8646E #6EC864

tetradic

#646EC8 #C864A0 #C8BE64 #64C88C

square

#646EC8 #C864A0 #C8BE64 #64C88C

split-complementary

#646EC8 #C88C64 #A0C864

monochromatic

#2F3783 #3F4AB0 #646EC8 #9198D8 #BEC3E8

Accessibility & contrast

On white

4.56

#646EC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#646EC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646EC8

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EC8	#FFFFFF	#000000	##000000
##646EC8	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#487ACB

Deuteranopia (green-blind)

#3F72C6

Tritanopia (blue-blind)

#3C8191

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #646ec8;
/* rgb */ color: rgb(100, 110, 200);
/* oklch */ color: oklch(57.3% 0.138 276.4);

Tailwind

colors: {
  custom: {
    50: '#9697d9',
    500: '#646ec8',
    950: '#000000',
  },
}

SCSS

$custom: #646ec8;
$custom-light: #9697d9;
$custom-dark: #000000;

JSON

{
  "hex": "#646ec8",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 200
  },
  "hsl": {
    "h": 234,
    "s": 47.619,
    "l": 58.824
  },
  "oklch": {
    "l": 0.57293,
    "c": 0.13771,
    "h": 276.4
  },
  "luminance": 0.18031
}

Semantic roles & 50–950 ramp

primary

#646EC8

secondary

#D8D4B0

accent

#CA51D7

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #646EC8

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

Preview Lab → · Contrast checker → · Palette generator →