#647FC4#647FC4

#647FC4 is a mid, moderate blue. Relative luminance 0.219; OKLCH L 60.6% C 0.110 H 266.9°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#647FC4
RGB	rgb(100, 127, 196)
HSL	hsl(223, 45%, 58%)
HSV	hsv(223, 49%, 77%)
CMYK	cmyk(49%, 35.2%, 0%, 23.1%)
CIE-LAB	lab(53.89, 9.44, -39.00)
CIE-LCH	lch(53.89, 40.13, 283.61°)
OKLab	oklab(60.57% -0.0059 -0.1099)
OKLCH	oklch(60.57% 0.11 266.9)
XYZ	xyz(22.8055, 21.8721, 55.2339)
Luminance	0.2187 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FC4 #C4A964

analogous

#64AFC4 #647FC4 #7964C4

triadic

#647FC4 #C4647F #7FC464

tetradic

#647FC4 #C464AF #C4A964 #64C479

square

#647FC4 #C464AF #C4A964 #64C479

split-complementary

#647FC4 #C47964 #AFC464

monochromatic

#30467E #415EAA #647FC4 #90A4D5 #BDC8E6

Accessibility & contrast

On white

3.91

#647FC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#647FC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FC4

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FC4	#FFFFFF	#000000	##000000
##647FC4	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)

#6585C7

Deuteranopia (green-blind)

#5B7DC2

Tritanopia (blue-blind)

#3C8E98

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #647fc4;
/* rgb */ color: rgb(100, 127, 196);
/* oklch */ color: oklch(60.6% 0.110 266.9);

Tailwind

colors: {
  custom: {
    50: '#95a3d6',
    500: '#647fc4',
    950: '#000000',
  },
}

SCSS

$custom: #647fc4;
$custom-light: #95a3d6;
$custom-dark: #000000;

JSON

{
  "hex": "#647fc4",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 196
  },
  "hsl": {
    "h": 223.125,
    "s": 44.86,
    "l": 58.039
  },
  "oklch": {
    "l": 0.60572,
    "c": 0.11005,
    "h": 266.9
  },
  "luminance": 0.21874
}

Semantic roles & 50–950 ramp

primary

#647FC4

secondary

#D5CAAF

accent

#B053D5

background

#F9FAFD

surface

#F2F3FA

border

#CCCDD3

text

#0E0F14

muted

#7E7F83

Preview Lab

Preview with #647FC4

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

Preview Lab → · Contrast checker → · Palette generator →