#647AAA#647AAA

#647AAA is a mid, moderate blue. Relative luminance 0.195; OKLCH L 58.2% C 0.079 H 265.1°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#647AAA
RGB	rgb(100, 122, 170)
HSL	hsl(221, 29%, 53%)
HSV	hsv(221, 41%, 67%)
CMYK	cmyk(41.2%, 28.2%, 0%, 33.3%)
CIE-LAB	lab(51.30, 4.65, -28.11)
CIE-LCH	lch(51.30, 28.49, 279.38°)
OKLab	oklab(58.17% -0.0067 -0.0784)
OKLCH	oklch(58.17% 0.079 265.1)
XYZ	xyz(19.4685, 19.5297, 40.7662)
Luminance	0.1953 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647AAA #AA9464

analogous

#649DAA #647AAA #7164AA

triadic

#647AAA #AA647A #7AAA64

tetradic

#647AAA #AA649D #AA9464 #64AA71

square

#647AAA #AA649D #AA9464 #64AA71

split-complementary

#647AAA #AA7164 #9DAA64

monochromatic

#34425F #4A5D87 #647AAA #8C9CC0 #B3BED5

Accessibility & contrast

On white

4.28

#647AAA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#647AAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647AAA

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647AAA	#FFFFFF	#000000	##000000
##647AAA	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697EAC

Deuteranopia (green-blind)

#6277A9

Tritanopia (blue-blind)

#4C848B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #647aaa;
/* rgb */ color: rgb(100, 122, 170);
/* oklch */ color: oklch(58.2% 0.079 265.1);

Tailwind

colors: {
  custom: {
    50: '#93a0c3',
    500: '#647aaa',
    950: '#000000',
  },
}

SCSS

$custom: #647aaa;
$custom-light: #93a0c3;
$custom-dark: #000000;

JSON

{
  "hex": "#647aaa",
  "rgb": {
    "r": 100,
    "g": 122,
    "b": 170
  },
  "hsl": {
    "h": 221.143,
    "s": 29.167,
    "l": 52.941
  },
  "oklch": {
    "l": 0.58166,
    "c": 0.07868,
    "h": 265.1
  },
  "luminance": 0.19531
}

Semantic roles & 50–950 ramp

primary

#647AAA

secondary

#C4BBA6

accent

#A662C5

background

#F9F9FC

surface

#F1F2F8

border

#CBCCD1

text

#0D0E12

muted

#7E7E81

Preview Lab

Preview with #647AAA

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

Preview Lab → · Contrast checker → · Palette generator →