#647CC3#647CC3

#647CC3 is a mid, moderate blue. Relative luminance 0.211; OKLCH L 59.9% C 0.112 H 268.7°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#647CC3
RGB	rgb(100, 124, 195)
HSL	hsl(225, 44%, 58%)
HSV	hsv(225, 49%, 76%)
CMYK	cmyk(48.7%, 36.4%, 0%, 23.5%)
CIE-LAB	lab(53.02, 10.94, -39.81)
CIE-LCH	lch(53.02, 41.28, 285.36°)
OKLab	oklab(59.88% -0.0025 -0.1122)
OKLCH	oklch(59.88% 0.112 268.7)
XYZ	xyz(22.3103, 21.0634, 54.5092)
Luminance	0.2107 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CC3 #C3AB64

analogous

#64ABC3 #647CC3 #7B64C3

triadic

#647CC3 #C3647C #7CC364

tetradic

#647CC3 #C364AB #C3AB64 #64C37B

square

#647CC3 #C364AB #C3AB64 #64C37B

split-complementary

#647CC3 #C37B64 #ABC364

monochromatic

#30437C #415BA9 #647CC3 #90A1D4 #BCC7E5

Accessibility & contrast

On white

4.03

#647CC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#647CC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CC3

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CC3	#FFFFFF	#000000	##000000
##647CC3	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6183C6

Deuteranopia (green-blind)

#577BC1

Tritanopia (blue-blind)

#3D8B96

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #647cc3;
/* rgb */ color: rgb(100, 124, 195);
/* oklch */ color: oklch(59.9% 0.112 268.7);

Tailwind

colors: {
  custom: {
    50: '#95a1d5',
    500: '#647cc3',
    950: '#000000',
  },
}

SCSS

$custom: #647cc3;
$custom-light: #95a1d5;
$custom-dark: #000000;

JSON

{
  "hex": "#647cc3",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 195
  },
  "hsl": {
    "h": 224.842,
    "s": 44.186,
    "l": 57.843
  },
  "oklch": {
    "l": 0.59881,
    "c": 0.11228,
    "h": 268.7
  },
  "luminance": 0.21065
}

Semantic roles & 50–950 ramp

primary

#647CC3

secondary

#D4CBAE

accent

#B454D4

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0E14

muted

#7E7E83

Preview Lab

Preview with #647CC3

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

Preview Lab → · Contrast checker → · Palette generator →