#646DC5#646DC5

#646DC5 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.9% C 0.135 H 276.8°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#646DC5
RGB	rgb(100, 109, 197)
HSL	hsl(234, 46%, 58%)
HSV	hsv(234, 49%, 77%)
CMYK	cmyk(49.2%, 44.7%, 0%, 22.7%)
CIE-LAB	lab(49.10, 20.69, -47.16)
CIE-LCH	lch(49.10, 51.50, 293.69°)
OKLab	oklab(56.91% 0.016 -0.1338)
OKLCH	oklch(56.91% 0.135 276.8)
XYZ	xyz(20.7991, 17.6766, 55.1285)
Luminance	0.1768 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DC5 #C5BC64

analogous

#649DC5 #646DC5 #8B64C5

triadic

#646DC5 #C5646D #6DC564

tetradic

#646DC5 #C5649D #C5BC64 #64C58B

square

#646DC5 #C5649D #C5BC64 #64C58B

split-complementary

#646DC5 #C58B64 #9DC564

monochromatic

#30377F #404AAC #646DC5 #9197D6 #BDC1E6

Accessibility & contrast

On white

4.63

#646DC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#646DC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #646DC5

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DC5	#FFFFFF	#000000	##FFFFFF
##646DC5	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4979C8

Deuteranopia (green-blind)

#4071C3

Tritanopia (blue-blind)

#3E808F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #646dc5;
/* rgb */ color: rgb(100, 109, 197);
/* oklch */ color: oklch(56.9% 0.135 276.8);

Tailwind

colors: {
  custom: {
    50: '#9696d7',
    500: '#646dc5',
    950: '#000000',
  },
}

SCSS

$custom: #646dc5;
$custom-light: #9696d7;
$custom-dark: #000000;

JSON

{
  "hex": "#646dc5",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 197
  },
  "hsl": {
    "h": 234.433,
    "s": 45.54,
    "l": 58.235
  },
  "oklch": {
    "l": 0.56911,
    "c": 0.13478,
    "h": 276.8
  },
  "luminance": 0.17678
}

Semantic roles & 50–950 ramp

primary

#646DC5

secondary

#D6D2AF

accent

#C953D5

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0D14

muted

#7E7E83

Preview Lab

Preview with #646DC5

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

Preview Lab → · Contrast checker → · Palette generator →