#647CD4#647CD4

#647CD4 is a mid, vivid blue. Relative luminance 0.219; OKLCH L 60.8% C 0.136 H 270.4°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#647CD4
RGB	rgb(100, 124, 212)
HSL	hsl(227, 57%, 61%)
HSV	hsv(227, 53%, 83%)
CMYK	cmyk(52.8%, 41.5%, 0%, 16.9%)
CIE-LAB	lab(53.90, 16.25, -48.08)
CIE-LCH	lch(53.90, 50.75, 288.68°)
OKLab	oklab(60.84% 0.001 -0.1364)
OKLCH	oklch(60.84% 0.136 270.4)
XYZ	xyz(24.3430, 21.8764, 65.2144)
Luminance	0.2188 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CD4 #D4BC64

analogous

#64B4D4 #647CD4 #8464D4

triadic

#647CD4 #D4647C #7CD464

tetradic

#647CD4 #D464B4 #D4BC64 #64D484

square

#647CD4 #D464B4 #D4BC64 #64D484

split-complementary

#647CD4 #D48464 #B4D464

monochromatic

#294094 #3655C4 #647CD4 #94A4E1 #C4CDEF

Accessibility & contrast

On white

3.91

#647CD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#647CD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CD4

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CD4	#FFFFFF	#000000	##000000
##647CD4	1.00	3.91	5.38	5.38
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5886D7

Deuteranopia (green-blind)

#4B7CD2

Tritanopia (blue-blind)

#2E8F9E

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #647cd4;
/* rgb */ color: rgb(100, 124, 212);
/* oklch */ color: oklch(60.8% 0.136 270.4);

Tailwind

colors: {
  custom: {
    50: '#97a1e2',
    500: '#647cd4',
    950: '#000000',
  },
}

SCSS

$custom: #647cd4;
$custom-light: #97a1e2;
$custom-dark: #000000;

JSON

{
  "hex": "#647cd4",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 212
  },
  "hsl": {
    "h": 227.143,
    "s": 56.566,
    "l": 61.176
  },
  "oklch": {
    "l": 0.60842,
    "c": 0.1364,
    "h": 270.4
  },
  "luminance": 0.21878
}

Semantic roles & 50–950 ramp

primary

#647CD4

secondary

#DFD6B5

accent

#A121C4

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #647CD4

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

Preview Lab → · Contrast checker → · Palette generator →