#647ACC#647ACC

#647ACC is a mid, vivid blue. Relative luminance 0.210; OKLCH L 60.0% C 0.128 H 270.8°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#647ACC
RGB	rgb(100, 122, 204)
HSL	hsl(227, 50%, 60%)
HSV	hsv(227, 51%, 80%)
CMYK	cmyk(51%, 40.2%, 0%, 20%)
CIE-LAB	lab(52.93, 14.94, -45.07)
CIE-LCH	lch(52.93, 47.48, 288.34°)
OKLab	oklab(59.97% 0.0018 -0.1276)
OKLCH	oklch(59.97% 0.128 270.8)
XYZ	xyz(23.1106, 20.9865, 59.9480)
Luminance	0.2099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647ACC #CCB664

analogous

#64AECC #647ACC #8264CC

triadic

#647ACC #CC647A #7ACC64

tetradic

#647ACC #CC64AE #CCB664 #64CC82

square

#647ACC #CC64AE #CCB664 #64CC82

split-complementary

#647ACC #CC8264 #AECC64

monochromatic

#2D4089 #3C56B7 #647ACC #92A2DB #C0C9EA

Accessibility & contrast

On white

4.04

#647ACC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#647ACC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647ACC

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647ACC	#FFFFFF	#000000	##000000
##647ACC	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5983CF

Deuteranopia (green-blind)

#4E7ACA

Tritanopia (blue-blind)

#368C99

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #647acc;
/* rgb */ color: rgb(100, 122, 204);
/* oklch */ color: oklch(60.0% 0.128 270.8);

Tailwind

colors: {
  custom: {
    50: '#96a0dc',
    500: '#647acc',
    950: '#000000',
  },
}

SCSS

$custom: #647acc;
$custom-light: #96a0dc;
$custom-dark: #000000;

JSON

{
  "hex": "#647acc",
  "rgb": {
    "r": 100,
    "g": 122,
    "b": 204
  },
  "hsl": {
    "h": 227.308,
    "s": 50.485,
    "l": 59.608
  },
  "oklch": {
    "l": 0.59966,
    "c": 0.12762,
    "h": 270.8
  },
  "luminance": 0.20988
}

Semantic roles & 50–950 ramp

primary

#647ACC

secondary

#DAD2B2

accent

#BC4EDA

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #647ACC

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

Preview Lab → · Contrast checker → · Palette generator →