#646CEC#646CEC

#646CEC is a mid, vivid blue. Relative luminance 0.195; OKLCH L 59.3% C 0.190 H 276.3°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#646CEC
RGB	rgb(100, 108, 236)
HSL	hsl(236, 78%, 66%)
HSV	hsv(236, 58%, 93%)
CMYK	cmyk(57.6%, 54.2%, 0%, 7.5%)
CIE-LAB	lab(51.25, 33.66, -65.82)
CIE-LCH	lch(51.25, 73.92, 297.08°)
OKLab	oklab(59.31% 0.0207 -0.1887)
OKLCH	oklch(59.31% 0.19 276.3)
XYZ	xyz(25.7535, 19.4887, 81.7452)
Luminance	0.1949 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CEC #ECE464

analogous

#64B0EC #646CEC #A064EC

triadic

#646CEC #EC646C #6CEC64

tetradic

#646CEC #EC64B0 #ECE464 #64ECA0

square

#646CEC #EC64B0 #ECE464 #64ECA0

split-complementary

#646CEC #ECA064 #B0EC64

monochromatic

#1721BE #2D38E5 #646CEC #9BA0F3 #D1D3F9

Accessibility & contrast

On white

4.29

#646CEC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#646CEC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646CEC

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CEC	#FFFFFF	#000000	##000000
##646CEC	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1180F0

Deuteranopia (green-blind)

#0075E9

Tritanopia (blue-blind)

#008AA2

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #646cec;
/* rgb */ color: rgb(100, 108, 236);
/* oklch */ color: oklch(59.3% 0.190 276.3);

Tailwind

colors: {
  custom: {
    50: '#9b96f3',
    500: '#646cec',
    950: '#000000',
  },
}

SCSS

$custom: #646cec;
$custom-light: #9b96f3;
$custom-dark: #000000;

JSON

{
  "hex": "#646cec",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 236
  },
  "hsl": {
    "h": 236.471,
    "s": 78.161,
    "l": 65.882
  },
  "oklch": {
    "l": 0.59305,
    "c": 0.18981,
    "h": 276.3
  },
  "luminance": 0.19491
}

Semantic roles & 50–950 ramp

primary

#646CEC

secondary

#ECEABF

accent

#CE0BDA

background

#FAF9FE

surface

#F4F1FD

border

#CECBD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646CEC

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

Preview Lab → · Contrast checker → · Palette generator →