#646ECD#646ECD

#646ECD is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.6% C 0.145 H 276.3°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#646ECD
RGB	rgb(100, 110, 205)
HSL	hsl(234, 51%, 60%)
HSV	hsv(234, 51%, 80%)
CMYK	cmyk(51.2%, 46.3%, 0%, 19.6%)
CIE-LAB	lab(49.82, 22.58, -50.60)
CIE-LCH	lch(49.82, 55.41, 294.05°)
OKLab	oklab(57.6% 0.016 -0.1439)
OKLCH	oklch(57.6% 0.145 276.3)
XYZ	xyz(21.8474, 18.2676, 60.1205)
Luminance	0.1827 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646ECD #CDC364

analogous

#64A2CD #646ECD #8F64CD

triadic

#646ECD #CD646E #6ECD64

tetradic

#646ECD #CD64A2 #CDC364 #64CD8F

square

#646ECD #CD64A2 #CDC364 #64CD8F

split-complementary

#646ECD #CD8F64 #A2CD64

monochromatic

#2D358A #3B47B8 #646ECD #9299DC #C1C5EB

Accessibility & contrast

On white

4.51

#646ECD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#646ECD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646ECD

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646ECD	#FFFFFF	#000000	##000000
##646ECD	1.00	4.51	4.65	4.65
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#447BD1

Deuteranopia (green-blind)

#3A72CB

Tritanopia (blue-blind)

#388393

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #646ecd;
/* rgb */ color: rgb(100, 110, 205);
/* oklch */ color: oklch(57.6% 0.145 276.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#646ecd",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 205
  },
  "hsl": {
    "h": 234.286,
    "s": 51.22,
    "l": 59.804
  },
  "oklch": {
    "l": 0.57604,
    "c": 0.14479,
    "h": 276.3
  },
  "luminance": 0.18269
}

Semantic roles & 50–950 ramp

primary

#646ECD

secondary

#DBD7B2

accent

#CD4DDB

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #646ECD

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

Preview Lab → · Contrast checker → · Palette generator →