#646ECE#646ECE

#646ECE is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.7% C 0.146 H 276.3°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#646ECE
RGB	rgb(100, 110, 206)
HSL	hsl(234, 52%, 60%)
HSV	hsv(234, 51%, 81%)
CMYK	cmyk(51.5%, 46.6%, 0%, 19.2%)
CIE-LAB	lab(49.88, 22.89, -51.07)
CIE-LCH	lch(49.88, 55.97, 294.14°)
OKLab	oklab(57.67% 0.0161 -0.1453)
OKLCH	oklch(57.67% 0.146 276.3)
XYZ	xyz(21.9685, 18.3161, 60.7583)
Luminance	0.1832 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646ECE #CEC464

analogous

#64A3CE #646ECE #8F64CE

triadic

#646ECE #CE646E #6ECE64

tetradic

#646ECE #CE64A3 #CEC464 #64CE8F

square

#646ECE #CE64A3 #CEC464 #64CE8F

split-complementary

#646ECE #CE8F64 #A3CE64

monochromatic

#2C358C #3B47BA #646ECE #9299DD #C1C5EB

Accessibility & contrast

On white

4.50

#646ECE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#646ECE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646ECE

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646ECE	#FFFFFF	#000000	##000000
##646ECE	1.00	4.50	4.66	4.66
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#447BD2

Deuteranopia (green-blind)

#3972CC

Tritanopia (blue-blind)

#378394

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #646ece;
/* rgb */ color: rgb(100, 110, 206);
/* oklch */ color: oklch(57.7% 0.146 276.3);

Tailwind

colors: {
  custom: {
    50: '#9797dd',
    500: '#646ece',
    950: '#000000',
  },
}

SCSS

$custom: #646ece;
$custom-light: #9797dd;
$custom-dark: #000000;

JSON

{
  "hex": "#646ece",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 206
  },
  "hsl": {
    "h": 234.34,
    "s": 51.961,
    "l": 60
  },
  "oklch": {
    "l": 0.57667,
    "c": 0.1462,
    "h": 276.3
  },
  "luminance": 0.18317
}

Semantic roles & 50–950 ramp

primary

#646ECE

secondary

#DBD7B2

accent

#CE4CDB

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #646ECE

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

Preview Lab → · Contrast checker → · Palette generator →