#646FCD#646FCD

#646FCD is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.8% C 0.143 H 275.9°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#646FCD
RGB	rgb(100, 111, 205)
HSL	hsl(234, 51%, 60%)
HSV	hsv(234, 51%, 80%)
CMYK	cmyk(51.2%, 45.9%, 0%, 19.6%)
CIE-LAB	lab(50.08, 21.97, -50.18)
CIE-LCH	lch(50.08, 54.78, 293.64°)
OKLab	oklab(57.8% 0.0148 -0.1427)
OKLCH	oklch(57.8% 0.143 275.9)
XYZ	xyz(21.9559, 18.4846, 60.1567)
Luminance	0.1849 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FCD #CDC264

analogous

#64A4CD #646FCD #8D64CD

triadic

#646FCD #CD646F #6FCD64

tetradic

#646FCD #CD64A4 #CDC264 #64CD8D

square

#646FCD #CD64A4 #CDC264 #64CD8D

split-complementary

#646FCD #CD8D64 #A4CD64

monochromatic

#2D368A #3B49B8 #646FCD #929ADC #C1C5EB

Accessibility & contrast

On white

4.47

#646FCD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#646FCD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646FCD

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FCD	#FFFFFF	#000000	##000000
##646FCD	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#467CD0

Deuteranopia (green-blind)

#3B73CB

Tritanopia (blue-blind)

#378394

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #646fcd;
/* rgb */ color: rgb(100, 111, 205);
/* oklch */ color: oklch(57.8% 0.143 275.9);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#646fcd",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 205
  },
  "hsl": {
    "h": 233.714,
    "s": 51.22,
    "l": 59.804
  },
  "oklch": {
    "l": 0.57801,
    "c": 0.14345,
    "h": 275.9
  },
  "luminance": 0.18486
}

Semantic roles & 50–950 ramp

primary

#646FCD

secondary

#DBD6B2

accent

#CC4DDB

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #646FCD

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

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