#646ABA#646ABA

#646ABA is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.6% C 0.123 H 278.4°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#646ABA
RGB	rgb(100, 106, 186)
HSL	hsl(236, 38%, 56%)
HSV	hsv(236, 46%, 73%)
CMYK	cmyk(46.2%, 43%, 0%, 27.1%)
CIE-LAB	lab(47.70, 19.15, -43.04)
CIE-LCH	lch(47.70, 47.11, 293.98°)
OKLab	oklab(55.65% 0.0179 -0.1218)
OKLCH	oklch(55.65% 0.123 278.4)
XYZ	xyz(19.2698, 16.5616, 48.6262)
Luminance	0.1656 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646ABA #BAB464

analogous

#6495BA #646ABA #8964BA

triadic

#646ABA #BA646A #6ABA64

tetradic

#646ABA #BA6495 #BAB464 #64BA89

square

#646ABA #BA6495 #BAB464 #64BA89

split-complementary

#646ABA #BA8964 #95BA64

monochromatic

#323771 #454B9C #646ABA #8E93CD #B9BBE0

Accessibility & contrast

On white

4.87

#646ABA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#646ABA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646ABA

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646ABA	#FFFFFF	#000000	##FFFFFF
##646ABA	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B75BD

Deuteranopia (green-blind)

#456EB8

Tritanopia (blue-blind)

#467B89

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #646aba;
/* rgb */ color: rgb(100, 106, 186);
/* oklch */ color: oklch(55.6% 0.123 278.4);

Tailwind

colors: {
  custom: {
    50: '#9594cf',
    500: '#646aba',
    950: '#000000',
  },
}

SCSS

$custom: #646aba;
$custom-light: #9594cf;
$custom-dark: #000000;

JSON

{
  "hex": "#646aba",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 186
  },
  "hsl": {
    "h": 235.814,
    "s": 38.393,
    "l": 56.078
  },
  "oklch": {
    "l": 0.55647,
    "c": 0.1231,
    "h": 278.4
  },
  "luminance": 0.16563
}

Semantic roles & 50–950 ramp

primary

#646ABA

secondary

#CFCCAB

accent

#C659CE

background

#F9F9FC

surface

#F2F1F9

border

#CCCBD2

text

#0E0D14

muted

#7E7E82

Preview Lab

Preview with #646ABA

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

Preview Lab → · Contrast checker → · Palette generator →