#646FA2#646FA2

#646FA2 is a mid, moderate blue. Relative luminance 0.167; OKLCH L 55.4% C 0.081 H 274.2°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#646FA2
RGB	rgb(100, 111, 162)
HSL	hsl(229, 25%, 51%)
HSV	hsv(229, 38%, 64%)
CMYK	cmyk(38.3%, 31.5%, 0%, 36.5%)
CIE-LAB	lab(47.86, 8.96, -28.80)
CIE-LCH	lch(47.86, 30.16, 287.29°)
OKLab	oklab(55.38% 0.0059 -0.0804)
OKLCH	oklch(55.38% 0.081 274.2)
XYZ	xyz(17.4596, 16.6861, 36.4762)
Luminance	0.1669 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FA2 #A29764

analogous

#648EA2 #646FA2 #7864A2

triadic

#646FA2 #A2646F #6FA264

tetradic

#646FA2 #A2648E #A29764 #64A278

square

#646FA2 #A2648E #A29764 #64A278

split-complementary

#646FA2 #A27864 #8EA264

monochromatic

#343B57 #4B547E #646FA2 #8A93B9 #B1B6D0

Accessibility & contrast

On white

4.84

#646FA2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#646FA2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646FA2

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FA2	#FFFFFF	#000000	##FFFFFF
##646FA2	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E74A4

Deuteranopia (green-blind)

#5A6FA1

Tritanopia (blue-blind)

#517981

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #646fa2;
/* rgb */ color: rgb(100, 111, 162);
/* oklch */ color: oklch(55.4% 0.081 274.2);

Tailwind

colors: {
  custom: {
    50: '#9298bd',
    500: '#646fa2',
    950: '#000000',
  },
}

SCSS

$custom: #646fa2;
$custom-light: #9298bd;
$custom-dark: #000000;

JSON

{
  "hex": "#646fa2",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 162
  },
  "hsl": {
    "h": 229.355,
    "s": 25,
    "l": 51.373
  },
  "oklch": {
    "l": 0.55378,
    "c": 0.08058,
    "h": 274.2
  },
  "luminance": 0.16687
}

Semantic roles & 50–950 ramp

primary

#646FA2

secondary

#BFBAA3

accent

#B166C1

background

#F9F9FB

surface

#F1F2F6

border

#CBCCD0

text

#0D0D12

muted

#7E7E81

Preview Lab

Preview with #646FA2

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

Preview Lab → · Contrast checker → · Palette generator →