#646AE5#646AE5

#646AE5 is a mid, vivid blue. Relative luminance 0.187; OKLCH L 58.4% C 0.183 H 277.0°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#646AE5
RGB	rgb(100, 106, 229)
HSL	hsl(237, 71%, 65%)
HSV	hsv(237, 56%, 90%)
CMYK	cmyk(56.3%, 53.7%, 0%, 10.2%)
CIE-LAB	lab(50.30, 32.63, -63.43)
CIE-LCH	lch(50.30, 71.33, 297.22°)
OKLab	oklab(58.45% 0.0224 -0.1817)
OKLCH	oklch(58.45% 0.183 277)
XYZ	xyz(24.5479, 18.6728, 76.4242)
Luminance	0.1867 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646AE5 #E5DF64

analogous

#64ABE5 #646AE5 #9E64E5

triadic

#646AE5 #E5646A #6AE564

tetradic

#646AE5 #E564AB #E5DF64 #64E59E

square

#646AE5 #E564AB #E5DF64 #64E59E

split-complementary

#646AE5 #E59E64 #ABE564

monochromatic

#1E25B1 #3038DC #646AE5 #989CEE #CDCFF7

Accessibility & contrast

On white

4.44

#646AE5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#646AE5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646AE5

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646AE5	#FFFFFF	#000000	##000000
##646AE5	1.00	4.44	4.74	4.74
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A7DE9

Deuteranopia (green-blind)

#0072E2

Tritanopia (blue-blind)

#18869D

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #646ae5;
/* rgb */ color: rgb(100, 106, 229);
/* oklch */ color: oklch(58.4% 0.183 277.0);

Tailwind

colors: {
  custom: {
    50: '#9a94ee',
    500: '#646ae5',
    950: '#000000',
  },
}

SCSS

$custom: #646ae5;
$custom-light: #9a94ee;
$custom-dark: #000000;

JSON

{
  "hex": "#646ae5",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 229
  },
  "hsl": {
    "h": 237.209,
    "s": 71.271,
    "l": 64.51
  },
  "oklch": {
    "l": 0.58446,
    "c": 0.18303,
    "h": 277
  },
  "luminance": 0.18675
}

Semantic roles & 50–950 ramp

primary

#646AE5

secondary

#E9E7BC

accent

#CA12D3

background

#FAF9FE

surface

#F3F1FD

border

#CDCBD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646AE5

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

Preview Lab → · Contrast checker → · Palette generator →