#647DD3#647DD3

#647DD3 is a mid, vivid blue. Relative luminance 0.221; OKLCH L 61.0% C 0.134 H 269.9°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#647DD3
RGB	rgb(100, 125, 211)
HSL	hsl(226, 56%, 61%)
HSV	hsv(226, 53%, 83%)
CMYK	cmyk(52.6%, 40.8%, 0%, 17.3%)
CIE-LAB	lab(54.11, 15.33, -47.17)
CIE-LCH	lch(54.11, 49.60, 288.01°)
OKLab	oklab(60.99% -0.0003 -0.1337)
OKLCH	oklch(60.99% 0.134 269.9)
XYZ	xyz(24.3432, 22.0780, 64.5941)
Luminance	0.2208 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DD3 #D3BA64

analogous

#64B5D3 #647DD3 #8264D3

triadic

#647DD3 #D3647D #7DD364

tetradic

#647DD3 #D364B5 #D3BA64 #64D382

square

#647DD3 #D364B5 #D3BA64 #64D382

split-complementary

#647DD3 #D38264 #B5D364

monochromatic

#2A4193 #3757C3 #647DD3 #94A5E1 #C3CDEE

Accessibility & contrast

On white

3.88

#647DD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#647DD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DD3

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DD3	#FFFFFF	#000000	##000000
##647DD3	1.00	3.88	5.42	5.42
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A87D6

Deuteranopia (green-blind)

#4D7DD1

Tritanopia (blue-blind)

#2E909E

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #647dd3;
/* rgb */ color: rgb(100, 125, 211);
/* oklch */ color: oklch(61.0% 0.134 269.9);

Tailwind

colors: {
  custom: {
    50: '#97a2e1',
    500: '#647dd3',
    950: '#000000',
  },
}

SCSS

$custom: #647dd3;
$custom-light: #97a2e1;
$custom-dark: #000000;

JSON

{
  "hex": "#647dd3",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 211
  },
  "hsl": {
    "h": 226.486,
    "s": 55.779,
    "l": 60.98
  },
  "oklch": {
    "l": 0.60989,
    "c": 0.13374,
    "h": 269.9
  },
  "luminance": 0.2208
}

Semantic roles & 50–950 ramp

primary

#647DD3

secondary

#DED5B4

accent

#9F22C3

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0F15

muted

#7E7E83

Preview Lab

Preview with #647DD3

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

Preview Lab → · Contrast checker → · Palette generator →