#647CAC#647CAC

#647CAC is a mid, moderate blue. Relative luminance 0.201; OKLCH L 58.7% C 0.079 H 263.7°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#647CAC
RGB	rgb(100, 124, 172)
HSL	hsl(220, 30%, 53%)
HSV	hsv(220, 42%, 67%)
CMYK	cmyk(41.9%, 27.9%, 0%, 32.5%)
CIE-LAB	lab(51.95, 4.04, -28.26)
CIE-LCH	lch(51.95, 28.55, 278.13°)
OKLab	oklab(58.7% -0.0087 -0.0788)
OKLCH	oklch(58.7% 0.079 263.7)
XYZ	xyz(19.9072, 20.1021, 41.8529)
Luminance	0.2010 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CAC #AC9464

analogous

#64A0AC #647CAC #7064AC

triadic

#647CAC #AC647C #7CAC64

tetradic

#647CAC #AC64A0 #AC9464 #64AC70

square

#647CAC #AC64A0 #AC9464 #64AC70

split-complementary

#647CAC #AC7064 #A0AC64

monochromatic

#344361 #4A5F89 #647CAC #8C9EC1 #B4BFD7

Accessibility & contrast

On white

4.18

#647CAC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#647CAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CAC

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CAC	#FFFFFF	#000000	##000000
##647CAC	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7FAE

Deuteranopia (green-blind)

#6479AB

Tritanopia (blue-blind)

#4B868D

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #647cac;
/* rgb */ color: rgb(100, 124, 172);
/* oklch */ color: oklch(58.7% 0.079 263.7);

Tailwind

colors: {
  custom: {
    50: '#93a1c5',
    500: '#647cac',
    950: '#000000',
  },
}

SCSS

$custom: #647cac;
$custom-light: #93a1c5;
$custom-dark: #000000;

JSON

{
  "hex": "#647cac",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 172
  },
  "hsl": {
    "h": 220,
    "s": 30.252,
    "l": 53.333
  },
  "oklch": {
    "l": 0.58703,
    "c": 0.07929,
    "h": 263.7
  },
  "luminance": 0.20103
}

Semantic roles & 50–950 ramp

primary

#647CAC

secondary

#C5BBA6

accent

#A561C6

background

#F9F9FC

surface

#F1F2F8

border

#CBCCD1

text

#0D0F12

muted

#7E7E81

Preview Lab

Preview with #647CAC

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

Preview Lab → · Contrast checker → · Palette generator →