#647DDE#647DDE

#647DDE is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.6% C 0.149 H 270.6°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#647DDE
RGB	rgb(100, 125, 222)
HSL	hsl(228, 65%, 63%)
HSV	hsv(228, 55%, 87%)
CMYK	cmyk(55%, 43.7%, 0%, 12.9%)
CIE-LAB	lab(54.71, 18.84, -52.42)
CIE-LCH	lch(54.71, 55.70, 289.76°)
OKLab	oklab(61.64% 0.0017 -0.1491)
OKLCH	oklch(61.64% 0.149 270.6)
XYZ	xyz(25.7696, 22.6486, 72.1067)
Luminance	0.2265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DDE #DEC564

analogous

#64BADE #647DDE #8864DE

triadic

#647DDE #DE647D #7DDE64

tetradic

#647DDE #DE64BA #DEC564 #64DE88

square

#647DDE #DE64BA #DEC564 #64DE88

split-complementary

#647DDE #DE8864 #BADE64

monochromatic

#233EA5 #3253D3 #647DDE #96A7E9 #C9D2F3

Accessibility & contrast

On white

3.80

#647DDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.53

#647DDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DDE

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DDE	#FFFFFF	#000000	##000000
##647DDE	1.00	3.80	5.53	5.53
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.53	21.00	1.00	1.00
##000000	5.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5389E2

Deuteranopia (green-blind)

#437EDC

Tritanopia (blue-blind)

#1F92A3

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #647dde;
/* rgb */ color: rgb(100, 125, 222);
/* oklch */ color: oklch(61.6% 0.149 270.6);

Tailwind

colors: {
  custom: {
    50: '#98a2e9',
    500: '#647dde',
    950: '#000000',
  },
}

SCSS

$custom: #647dde;
$custom-light: #98a2e9;
$custom-dark: #000000;

JSON

{
  "hex": "#647dde",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 222
  },
  "hsl": {
    "h": 227.705,
    "s": 64.894,
    "l": 63.137
  },
  "oklch": {
    "l": 0.61643,
    "c": 0.14913,
    "h": 270.6
  },
  "luminance": 0.2265
}

Semantic roles & 50–950 ramp

primary

#647DDE

secondary

#E5DCB9

accent

#A819CD

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #647DDE

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

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