#647CCE#647CCE

#647CCE is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.5% C 0.128 H 269.9°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#647CCE
RGB	rgb(100, 124, 206)
HSL	hsl(226, 52%, 60%)
HSV	hsv(226, 51%, 81%)
CMYK	cmyk(51.5%, 39.8%, 0%, 19.2%)
CIE-LAB	lab(53.58, 14.36, -45.18)
CIE-LCH	lch(53.58, 47.41, 287.63°)
OKLab	oklab(60.49% -0.0001 -0.1279)
OKLCH	oklch(60.49% 0.128 269.9)
XYZ	xyz(23.6001, 21.5793, 61.3022)
Luminance	0.2158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CCE #CEB664

analogous

#64B1CE #647CCE #8164CE

triadic

#647CCE #CE647C #7CCE64

tetradic

#647CCE #CE64B1 #CEB664 #64CE81

square

#647CCE #CE64B1 #CEB664 #64CE81

split-complementary

#647CCE #CE8164 #B1CE64

monochromatic

#2C428C #3B58BA #647CCE #92A3DD #C1CBEB

Accessibility & contrast

On white

3.95

#647CCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#647CCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CCE

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CCE	#FFFFFF	#000000	##000000
##647CCE	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B85D1

Deuteranopia (green-blind)

#507CCC

Tritanopia (blue-blind)

#348E9B

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #647cce;
/* rgb */ color: rgb(100, 124, 206);
/* oklch */ color: oklch(60.5% 0.128 269.9);

Tailwind

colors: {
  custom: {
    50: '#96a1dd',
    500: '#647cce',
    950: '#000000',
  },
}

SCSS

$custom: #647cce;
$custom-light: #96a1dd;
$custom-dark: #000000;

JSON

{
  "hex": "#647cce",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 206
  },
  "hsl": {
    "h": 226.415,
    "s": 51.961,
    "l": 60
  },
  "oklch": {
    "l": 0.60494,
    "c": 0.12794,
    "h": 269.9
  },
  "luminance": 0.21581
}

Semantic roles & 50–950 ramp

primary

#647CCE

secondary

#DBD2B2

accent

#BB4CDB

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #647CCE

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

Preview Lab → · Contrast checker → · Palette generator →