#647BD2#647BD2

#647BD2 is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.5% C 0.135 H 270.8°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#647BD2
RGB	rgb(100, 123, 210)
HSL	hsl(227, 55%, 61%)
HSV	hsv(227, 52%, 82%)
CMYK	cmyk(52.4%, 41.4%, 0%, 17.6%)
CIE-LAB	lab(53.52, 16.23, -47.54)
CIE-LCH	lch(53.52, 50.23, 288.85°)
OKLab	oklab(60.52% 0.0018 -0.1348)
OKLCH	oklch(60.52% 0.135 270.8)
XYZ	xyz(23.9676, 21.5268, 63.8524)
Luminance	0.2153 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BD2 #D2BB64

analogous

#64B2D2 #647BD2 #8464D2

triadic

#647BD2 #D2647B #7BD264

tetradic

#647BD2 #D264B2 #D2BB64 #64D284

square

#647BD2 #D264B2 #D2BB64 #64D284

split-complementary

#647BD2 #D28464 #B2D264

monochromatic

#2A4091 #3855C1 #647BD2 #93A3E0 #C3CCEE

Accessibility & contrast

On white

3.96

#647BD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#647BD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BD2

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BD2	#FFFFFF	#000000	##000000
##647BD2	1.00	3.96	5.31	5.31
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5785D5

Deuteranopia (green-blind)

#4B7BD0

Tritanopia (blue-blind)

#308E9C

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #647bd2;
/* rgb */ color: rgb(100, 123, 210);
/* oklch */ color: oklch(60.5% 0.135 270.8);

Tailwind

colors: {
  custom: {
    50: '#97a0e0',
    500: '#647bd2',
    950: '#000000',
  },
}

SCSS

$custom: #647bd2;
$custom-light: #97a0e0;
$custom-dark: #000000;

JSON

{
  "hex": "#647bd2",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 210
  },
  "hsl": {
    "h": 227.455,
    "s": 55,
    "l": 60.784
  },
  "oklch": {
    "l": 0.6052,
    "c": 0.13485,
    "h": 270.8
  },
  "luminance": 0.21528
}

Semantic roles & 50–950 ramp

primary

#647BD2

secondary

#DED5B4

accent

#A123C3

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #647BD2

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

Preview Lab → · Contrast checker → · Palette generator →