#647FDA#647FDA

#647FDA is a mid, vivid blue. Relative luminance 0.230; OKLCH L 61.8% C 0.141 H 269.5°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#647FDA
RGB	rgb(100, 127, 218)
HSL	hsl(226, 61%, 62%)
HSV	hsv(226, 54%, 85%)
CMYK	cmyk(54.1%, 41.7%, 0%, 14.5%)
CIE-LAB	lab(55.02, 16.35, -49.67)
CIE-LCH	lch(55.02, 52.30, 288.21°)
OKLab	oklab(61.81% -0.0012 -0.141)
OKLCH	oklch(61.81% 0.141 269.5)
XYZ	xyz(25.4956, 22.9482, 69.4020)
Luminance	0.2295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FDA #DABF64

analogous

#64BADA #647FDA #8464DA

triadic

#647FDA #DA647F #7FDA64

tetradic

#647FDA #DA64BA #DABF64 #64DA84

square

#647FDA #DA64BA #DABF64 #64DA84

split-complementary

#647FDA #DA8464 #BADA64

monochromatic

#26419E #3356CE #647FDA #95A8E6 #C7D1F2

Accessibility & contrast

On white

3.76

#647FDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#647FDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FDA

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FDA	#FFFFFF	#000000	##000000
##647FDA	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5989DE

Deuteranopia (green-blind)

#4B7FD8

Tritanopia (blue-blind)

#2593A2

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #647fda;
/* rgb */ color: rgb(100, 127, 218);
/* oklch */ color: oklch(61.8% 0.141 269.5);

Tailwind

colors: {
  custom: {
    50: '#98a3e6',
    500: '#647fda',
    950: '#000000',
  },
}

SCSS

$custom: #647fda;
$custom-light: #98a3e6;
$custom-dark: #000000;

JSON

{
  "hex": "#647fda",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 218
  },
  "hsl": {
    "h": 226.271,
    "s": 61.458,
    "l": 62.353
  },
  "oklch": {
    "l": 0.61809,
    "c": 0.14106,
    "h": 269.5
  },
  "luminance": 0.2295
}

Semantic roles & 50–950 ramp

primary

#647FDA

secondary

#E2D9B7

accent

#A21CC9

background

#F9FAFE

surface

#F2F3FC

border

#CCCDD5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #647FDA

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

Preview Lab → · Contrast checker → · Palette generator →