#647FD3#647FD3

#647FD3 is a mid, vivid blue. Relative luminance 0.226; OKLCH L 61.4% C 0.131 H 268.9°. Best body text is #000000 at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#647FD3
RGB	rgb(100, 127, 211)
HSL	hsl(225, 56%, 61%)
HSV	hsv(225, 53%, 83%)
CMYK	cmyk(52.6%, 39.8%, 0%, 17.3%)
CIE-LAB	lab(54.65, 14.12, -46.32)
CIE-LCH	lch(54.65, 48.43, 286.96°)
OKLab	oklab(61.4% -0.0026 -0.1312)
OKLCH	oklch(61.4% 0.131 268.9)
XYZ	xyz(24.5989, 22.5895, 64.6794)
Luminance	0.2259 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FD3 #D3B864

analogous

#64B7D3 #647FD3 #8064D3

triadic

#647FD3 #D3647F #7FD364

tetradic

#647FD3 #D364B7 #D3B864 #64D380

square

#647FD3 #D364B7 #D3B864 #64D380

split-complementary

#647FD3 #D38064 #B7D364

monochromatic

#2A4393 #3759C3 #647FD3 #94A6E1 #C3CEEE

Accessibility & contrast

On white

3.81

#647FD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.52

#647FD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FD3

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FD3	#FFFFFF	#000000	##000000
##647FD3	1.00	3.81	5.52	5.52
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.52	21.00	1.00	1.00
##000000	5.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D88D6

Deuteranopia (green-blind)

#507ED1

Tritanopia (blue-blind)

#2E919F

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #647fd3;
/* rgb */ color: rgb(100, 127, 211);
/* oklch */ color: oklch(61.4% 0.131 268.9);

Tailwind

colors: {
  custom: {
    50: '#97a3e1',
    500: '#647fd3',
    950: '#000000',
  },
}

SCSS

$custom: #647fd3;
$custom-light: #97a3e1;
$custom-dark: #000000;

JSON

{
  "hex": "#647fd3",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 211
  },
  "hsl": {
    "h": 225.405,
    "s": 55.779,
    "l": 60.98
  },
  "oklch": {
    "l": 0.61402,
    "c": 0.13126,
    "h": 268.9
  },
  "luminance": 0.22591
}

Semantic roles & 50–950 ramp

primary

#647FD3

secondary

#DED4B4

accent

#9C22C3

background

#F9FAFD

surface

#F2F3FB

border

#CCCDD4

text

#0E0F15

muted

#7E7F83

Preview Lab

Preview with #647FD3

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

Preview Lab → · Contrast checker → · Palette generator →