#646EC5#646EC5

#646EC5 is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.1% C 0.133 H 276.4°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#646EC5
RGB	rgb(100, 110, 197)
HSL	hsl(234, 46%, 58%)
HSV	hsv(234, 49%, 77%)
CMYK	cmyk(49.2%, 44.2%, 0%, 22.7%)
CIE-LAB	lab(49.36, 20.08, -46.74)
CIE-LCH	lch(49.36, 50.87, 293.25°)
OKLab	oklab(57.11% 0.0148 -0.1326)
OKLCH	oklch(57.11% 0.133 276.4)
XYZ	xyz(20.9064, 17.8912, 55.1642)
Luminance	0.1789 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EC5 #C5BB64

analogous

#649FC5 #646EC5 #8A64C5

triadic

#646EC5 #C5646E #6EC564

tetradic

#646EC5 #C5649F #C5BB64 #64C58A

square

#646EC5 #C5649F #C5BB64 #64C58A

split-complementary

#646EC5 #C58A64 #9FC564

monochromatic

#30387F #404BAC #646EC5 #9198D6 #BDC1E6

Accessibility & contrast

On white

4.59

#646EC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#646EC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #646EC5

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EC5	#FFFFFF	#000000	##FFFFFF
##646EC5	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A79C8

Deuteranopia (green-blind)

#4272C3

Tritanopia (blue-blind)

#3E8090

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #646ec5;
/* rgb */ color: rgb(100, 110, 197);
/* oklch */ color: oklch(57.1% 0.133 276.4);

Tailwind

colors: {
  custom: {
    50: '#9697d7',
    500: '#646ec5',
    950: '#000000',
  },
}

SCSS

$custom: #646ec5;
$custom-light: #9697d7;
$custom-dark: #000000;

JSON

{
  "hex": "#646ec5",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 197
  },
  "hsl": {
    "h": 233.814,
    "s": 45.54,
    "l": 58.235
  },
  "oklch": {
    "l": 0.5711,
    "c": 0.13342,
    "h": 276.4
  },
  "luminance": 0.17892
}

Semantic roles & 50–950 ramp

primary

#646EC5

secondary

#D6D2AF

accent

#C853D5

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0D14

muted

#7E7E83

Preview Lab

Preview with #646EC5

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

Preview Lab → · Contrast checker → · Palette generator →