#647ECF#647ECF

#647ECF is a mid, vivid blue. Relative luminance 0.221; OKLCH L 61.0% C 0.127 H 269.0°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#647ECF
RGB	rgb(100, 126, 207)
HSL	hsl(225, 53%, 60%)
HSV	hsv(225, 52%, 81%)
CMYK	cmyk(51.7%, 39.1%, 0%, 18.8%)
CIE-LAB	lab(54.17, 13.47, -44.81)
CIE-LCH	lch(54.17, 46.79, 286.73°)
OKLab	oklab(60.97% -0.0022 -0.1268)
OKLCH	oklch(60.97% 0.127 269)
XYZ	xyz(23.9752, 22.1344, 62.0284)
Luminance	0.2214 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647ECF #CFB564

analogous

#64B3CF #647ECF #8064CF

triadic

#647ECF #CF647E #7ECF64

tetradic

#647ECF #CF64B3 #CFB564 #64CF80

square

#647ECF #CF64B3 #CFB564 #64CF80

split-complementary

#647ECF #CF8064 #B3CF64

monochromatic

#2C438D #3A5ABC #647ECF #93A5DD #C1CCEC

Accessibility & contrast

On white

3.87

#647ECF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#647ECF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647ECF

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647ECF	#FFFFFF	#000000	##000000
##647ECF	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E87D2

Deuteranopia (green-blind)

#527DCD

Tritanopia (blue-blind)

#328F9C

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #647ecf;
/* rgb */ color: rgb(100, 126, 207);
/* oklch */ color: oklch(61.0% 0.127 269.0);

Tailwind

colors: {
  custom: {
    50: '#97a3de',
    500: '#647ecf',
    950: '#000000',
  },
}

SCSS

$custom: #647ecf;
$custom-light: #97a3de;
$custom-dark: #000000;

JSON

{
  "hex": "#647ecf",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 207
  },
  "hsl": {
    "h": 225.421,
    "s": 52.709,
    "l": 60.196
  },
  "oklch": {
    "l": 0.60967,
    "c": 0.12686,
    "h": 269
  },
  "luminance": 0.22136
}

Semantic roles & 50–950 ramp

primary

#647ECF

secondary

#DCD2B3

accent

#9B25C0

background

#F9FAFD

surface

#F2F3FB

border

#CCCDD4

text

#0E0F15

muted

#7E7F83

Preview Lab

Preview with #647ECF

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

Preview Lab → · Contrast checker → · Palette generator →