#647BC5#647BC5

#647BC5 is a mid, moderate blue. Relative luminance 0.209; OKLCH L 59.8% C 0.116 H 269.6°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#647BC5
RGB	rgb(100, 123, 197)
HSL	hsl(226, 46%, 58%)
HSV	hsv(226, 49%, 77%)
CMYK	cmyk(49.2%, 37.6%, 0%, 22.7%)
CIE-LAB	lab(52.85, 12.16, -41.22)
CIE-LCH	lch(52.85, 42.98, 286.43°)
OKLab	oklab(59.78% -0.0008 -0.1164)
OKLCH	oklch(59.78% 0.116 269.6)
XYZ	xyz(22.4133, 20.9050, 55.6665)
Luminance	0.2091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BC5 #C5AE64

analogous

#64ABC5 #647BC5 #7D64C5

triadic

#647BC5 #C5647B #7BC564

tetradic

#647BC5 #C564AB #C5AE64 #64C57D

square

#647BC5 #C564AB #C5AE64 #64C57D

split-complementary

#647BC5 #C57D64 #ABC564

monochromatic

#30427F #405AAC #647BC5 #91A1D6 #BDC7E6

Accessibility & contrast

On white

4.05

#647BC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#647BC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BC5

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BC5	#FFFFFF	#000000	##000000
##647BC5	1.00	4.05	5.18	5.18
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F83C8

Deuteranopia (green-blind)

#557AC3

Tritanopia (blue-blind)

#3C8B96

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #647bc5;
/* rgb */ color: rgb(100, 123, 197);
/* oklch */ color: oklch(59.8% 0.116 269.6);

Tailwind

colors: {
  custom: {
    50: '#95a0d7',
    500: '#647bc5',
    950: '#000000',
  },
}

SCSS

$custom: #647bc5;
$custom-light: #95a0d7;
$custom-dark: #000000;

JSON

{
  "hex": "#647bc5",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 197
  },
  "hsl": {
    "h": 225.773,
    "s": 45.54,
    "l": 58.235
  },
  "oklch": {
    "l": 0.5978,
    "c": 0.11638,
    "h": 269.6
  },
  "luminance": 0.20906
}

Semantic roles & 50–950 ramp

primary

#647BC5

secondary

#D6CDAF

accent

#B653D5

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0E14

muted

#7E7E83

Preview Lab

Preview with #647BC5

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

Preview Lab → · Contrast checker → · Palette generator →