#647FD5#647FD5

#647FD5 is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.5% C 0.134 H 269.1°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#647FD5
RGB	rgb(100, 127, 213)
HSL	hsl(226, 57%, 61%)
HSV	hsv(226, 53%, 84%)
CMYK	cmyk(53.1%, 40.4%, 0%, 16.5%)
CIE-LAB	lab(54.75, 14.76, -47.28)
CIE-LCH	lch(54.75, 49.53, 287.33°)
OKLab	oklab(61.52% -0.0022 -0.134)
OKLCH	oklch(61.52% 0.134 269.1)
XYZ	xyz(24.8512, 22.6904, 66.0080)
Luminance	0.2269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FD5 #D5BA64

analogous

#64B8D5 #647FD5 #8264D5

triadic

#647FD5 #D5647F #7FD564

tetradic

#647FD5 #D564B8 #D5BA64 #64D582

square

#647FD5 #D564B8 #D5BA64 #64D582

split-complementary

#647FD5 #D58264 #B8D564

monochromatic

#294396 #3658C6 #647FD5 #94A7E2 #C4CFEF

Accessibility & contrast

On white

3.79

#647FD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#647FD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FD5

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FD5	#FFFFFF	#000000	##000000
##647FD5	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C88D8

Deuteranopia (green-blind)

#4F7ED3

Tritanopia (blue-blind)

#2C92A0

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #647fd5;
/* rgb */ color: rgb(100, 127, 213);
/* oklch */ color: oklch(61.5% 0.134 269.1);

Tailwind

colors: {
  custom: {
    50: '#97a3e2',
    500: '#647fd5',
    950: '#000000',
  },
}

SCSS

$custom: #647fd5;
$custom-light: #97a3e2;
$custom-dark: #000000;

JSON

{
  "hex": "#647fd5",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 213
  },
  "hsl": {
    "h": 225.664,
    "s": 57.36,
    "l": 61.373
  },
  "oklch": {
    "l": 0.61517,
    "c": 0.13407,
    "h": 269.1
  },
  "luminance": 0.22692
}

Semantic roles & 50–950 ramp

primary

#647FD5

secondary

#E0D5B5

accent

#9E21C5

background

#F9FAFD

surface

#F2F3FB

border

#CCCDD4

text

#0E0F15

muted

#7E7F83

Preview Lab

Preview with #647FD5

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

Preview Lab → · Contrast checker → · Palette generator →