#647BCE#647BCE

#647BCE is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.3% C 0.129 H 270.5°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#647BCE
RGB	rgb(100, 123, 206)
HSL	hsl(227, 52%, 60%)
HSV	hsv(227, 51%, 81%)
CMYK	cmyk(51.5%, 40.3%, 0%, 19.2%)
CIE-LAB	lab(53.31, 14.97, -45.61)
CIE-LCH	lch(53.31, 48.00, 288.17°)
OKLab	oklab(60.29% 0.001 -0.1292)
OKLCH	oklch(60.29% 0.129 270.5)
XYZ	xyz(23.4755, 21.3299, 61.2606)
Luminance	0.2133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BCE #CEB764

analogous

#64B0CE #647BCE #8264CE

triadic

#647BCE #CE647B #7BCE64

tetradic

#647BCE #CE64B0 #CEB764 #64CE82

square

#647BCE #CE64B0 #CEB764 #64CE82

split-complementary

#647BCE #CE8264 #B0CE64

monochromatic

#2C418C #3B56BA #647BCE #92A3DD #C1CAEB

Accessibility & contrast

On white

3.99

#647BCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#647BCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BCE

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BCE	#FFFFFF	#000000	##000000
##647BCE	1.00	3.99	5.27	5.27
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A84D1

Deuteranopia (green-blind)

#4E7BCC

Tritanopia (blue-blind)

#348D9A

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #647bce;
/* rgb */ color: rgb(100, 123, 206);
/* oklch */ color: oklch(60.3% 0.129 270.5);

Tailwind

colors: {
  custom: {
    50: '#96a0dd',
    500: '#647bce',
    950: '#000000',
  },
}

SCSS

$custom: #647bce;
$custom-light: #96a0dd;
$custom-dark: #000000;

JSON

{
  "hex": "#647bce",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 206
  },
  "hsl": {
    "h": 226.981,
    "s": 51.961,
    "l": 60
  },
  "oklch": {
    "l": 0.60288,
    "c": 0.12919,
    "h": 270.5
  },
  "luminance": 0.21331
}

Semantic roles & 50–950 ramp

primary

#647BCE

secondary

#DBD2B2

accent

#BC4CDB

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #647BCE

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

Preview Lab → · Contrast checker → · Palette generator →