#647DD9#647DD9

#647DD9 is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.3% C 0.142 H 270.3°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#647DD9
RGB	rgb(100, 125, 217)
HSL	hsl(227, 61%, 62%)
HSV	hsv(227, 54%, 85%)
CMYK	cmyk(53.9%, 42.4%, 0%, 14.9%)
CIE-LAB	lab(54.43, 17.24, -50.04)
CIE-LCH	lch(54.43, 52.93, 289.01°)
OKLab	oklab(61.34% 0.0008 -0.1422)
OKLCH	oklch(61.34% 0.142 270.3)
XYZ	xyz(25.1094, 22.3845, 68.6297)
Luminance	0.2239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DD9 #D9C064

analogous

#64B8D9 #647DD9 #8564D9

triadic

#647DD9 #D9647D #7DD964

tetradic

#647DD9 #D964B8 #D9C064 #64D985

square

#647DD9 #D964B8 #D9C064 #64D985

split-complementary

#647DD9 #D98564 #B8D964

monochromatic

#26409C #3354CD #647DD9 #95A6E5 #C6CFF1

Accessibility & contrast

On white

3.83

#647DD9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#647DD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DD9

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DD9	#FFFFFF	#000000	##000000
##647DD9	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5688DD

Deuteranopia (green-blind)

#487DD7

Tritanopia (blue-blind)

#2791A0

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #647dd9;
/* rgb */ color: rgb(100, 125, 217);
/* oklch */ color: oklch(61.3% 0.142 270.3);

Tailwind

colors: {
  custom: {
    50: '#98a2e5',
    500: '#647dd9',
    950: '#000000',
  },
}

SCSS

$custom: #647dd9;
$custom-light: #98a2e5;
$custom-dark: #000000;

JSON

{
  "hex": "#647dd9",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 217
  },
  "hsl": {
    "h": 227.179,
    "s": 60.622,
    "l": 62.157
  },
  "oklch": {
    "l": 0.61342,
    "c": 0.14216,
    "h": 270.3
  },
  "luminance": 0.22386
}

Semantic roles & 50–950 ramp

primary

#647DD9

secondary

#E2D9B7

accent

#A41DC8

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #647DD9

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

Preview Lab → · Contrast checker → · Palette generator →