#646FCE#646FCE

#646FCE is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.9% C 0.145 H 275.9°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#646FCE
RGB	rgb(100, 111, 206)
HSL	hsl(234, 52%, 60%)
HSV	hsv(234, 51%, 81%)
CMYK	cmyk(51.5%, 46.1%, 0%, 19.2%)
CIE-LAB	lab(50.14, 22.28, -50.66)
CIE-LCH	lch(50.14, 55.34, 293.74°)
OKLab	oklab(57.86% 0.015 -0.1441)
OKLCH	oklch(57.86% 0.145 275.9)
XYZ	xyz(22.0770, 18.5331, 60.7945)
Luminance	0.1853 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FCE #CEC364

analogous

#64A4CE #646FCE #8E64CE

triadic

#646FCE #CE646F #6FCE64

tetradic

#646FCE #CE64A4 #CEC364 #64CE8E

square

#646FCE #CE64A4 #CEC364 #64CE8E

split-complementary

#646FCE #CE8E64 #A4CE64

monochromatic

#2C368C #3B48BA #646FCE #929ADD #C1C5EB

Accessibility & contrast

On white

4.46

#646FCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#646FCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646FCE

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FCE	#FFFFFF	#000000	##000000
##646FCE	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#457CD2

Deuteranopia (green-blind)

#3A73CC

Tritanopia (blue-blind)

#368494

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #646fce;
/* rgb */ color: rgb(100, 111, 206);
/* oklch */ color: oklch(57.9% 0.145 275.9);

Tailwind

colors: {
  custom: {
    50: '#9798dd',
    500: '#646fce',
    950: '#000000',
  },
}

SCSS

$custom: #646fce;
$custom-light: #9798dd;
$custom-dark: #000000;

JSON

{
  "hex": "#646fce",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 206
  },
  "hsl": {
    "h": 233.774,
    "s": 51.961,
    "l": 60
  },
  "oklch": {
    "l": 0.57864,
    "c": 0.14486,
    "h": 275.9
  },
  "luminance": 0.18534
}

Semantic roles & 50–950 ramp

primary

#646FCE

secondary

#DBD7B2

accent

#CD4CDB

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #646FCE

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

Preview Lab → · Contrast checker → · Palette generator →