#647FC3#647FC3

#647FC3 is a mid, moderate blue. Relative luminance 0.218; OKLCH L 60.5% C 0.109 H 266.7°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#647FC3
RGB	rgb(100, 127, 195)
HSL	hsl(223, 44%, 58%)
HSV	hsv(223, 49%, 76%)
CMYK	cmyk(48.7%, 34.9%, 0%, 23.5%)
CIE-LAB	lab(53.84, 9.13, -38.51)
CIE-LCH	lch(53.84, 39.58, 283.34°)
OKLab	oklab(60.52% -0.0062 -0.1085)
OKLCH	oklch(60.52% 0.109 266.7)
XYZ	xyz(22.6920, 21.8267, 54.6364)
Luminance	0.2183 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FC3 #C3A864

analogous

#64AFC3 #647FC3 #7864C3

triadic

#647FC3 #C3647F #7FC364

tetradic

#647FC3 #C364AF #C3A864 #64C378

square

#647FC3 #C364AF #C3A864 #64C378

split-complementary

#647FC3 #C37864 #AFC364

monochromatic

#30467C #415FA9 #647FC3 #90A3D4 #BCC8E5

Accessibility & contrast

On white

3.91

#647FC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#647FC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FC3

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FC3	#FFFFFF	#000000	##000000
##647FC3	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6585C6

Deuteranopia (green-blind)

#5B7DC1

Tritanopia (blue-blind)

#3D8D98

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #647fc3;
/* rgb */ color: rgb(100, 127, 195);
/* oklch */ color: oklch(60.5% 0.109 266.7);

Tailwind

colors: {
  custom: {
    50: '#95a3d5',
    500: '#647fc3',
    950: '#000000',
  },
}

SCSS

$custom: #647fc3;
$custom-light: #95a3d5;
$custom-dark: #000000;

JSON

{
  "hex": "#647fc3",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 195
  },
  "hsl": {
    "h": 222.947,
    "s": 44.186,
    "l": 57.843
  },
  "oklch": {
    "l": 0.60518,
    "c": 0.10864,
    "h": 266.7
  },
  "luminance": 0.21828
}

Semantic roles & 50–950 ramp

primary

#647FC3

secondary

#D4CAAE

accent

#B054D4

background

#F9FAFD

surface

#F2F3FA

border

#CCCDD3

text

#0E0F14

muted

#7E7F83

Preview Lab

Preview with #647FC3

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

Preview Lab → · Contrast checker → · Palette generator →