#647CAE#647CAE

#647CAE is a mid, moderate blue. Relative luminance 0.202; OKLCH L 58.8% C 0.082 H 264.3°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#647CAE
RGB	rgb(100, 124, 174)
HSL	hsl(221, 31%, 54%)
HSV	hsv(221, 43%, 68%)
CMYK	cmyk(42.5%, 28.7%, 0%, 31.8%)
CIE-LAB	lab(52.04, 4.62, -29.28)
CIE-LCH	lch(52.04, 29.64, 278.97°)
OKLab	oklab(58.8% -0.0081 -0.0817)
OKLCH	oklch(58.8% 0.082 264.3)
XYZ	xyz(20.1008, 20.1795, 42.8721)
Luminance	0.2018 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CAE #AE9664

analogous

#64A1AE #647CAE #7164AE

triadic

#647CAE #AE647C #7CAE64

tetradic

#647CAE #AE64A1 #AE9664 #64AE71

square

#647CAE #AE64A1 #AE9664 #64AE71

split-complementary

#647CAE #AE7164 #A1AE64

monochromatic

#344364 #495F8C #647CAE #8C9EC3 #B4C0D8

Accessibility & contrast

On white

4.17

#647CAE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#647CAE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CAE

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CAE	#FFFFFF	#000000	##000000
##647CAE	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A80B0

Deuteranopia (green-blind)

#6379AD

Tritanopia (blue-blind)

#4A868E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #647cae;
/* rgb */ color: rgb(100, 124, 174);
/* oklch */ color: oklch(58.8% 0.082 264.3);

Tailwind

colors: {
  custom: {
    50: '#93a1c6',
    500: '#647cae',
    950: '#000000',
  },
}

SCSS

$custom: #647cae;
$custom-light: #93a1c6;
$custom-dark: #000000;

JSON

{
  "hex": "#647cae",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 174
  },
  "hsl": {
    "h": 220.541,
    "s": 31.356,
    "l": 53.725
  },
  "oklch": {
    "l": 0.58799,
    "c": 0.08215,
    "h": 264.3
  },
  "luminance": 0.20181
}

Semantic roles & 50–950 ramp

primary

#647CAE

secondary

#C7BCA7

accent

#A660C8

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0F13

muted

#7E7E82

Preview Lab

Preview with #647CAE

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

Preview Lab → · Contrast checker → · Palette generator →