Grey Blue#647D8E

#647D8E is a mid, muted cyan. Relative luminance 0.193; OKLCH L 57.6% C 0.039 H 238.1°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Grey Blue — editorial page

Color values

HEX	#647D8E
RGB	rgb(100, 125, 142)
HSL	hsl(204, 17%, 47%)
HSV	hsv(204, 30%, 56%)
CMYK	cmyk(29.6%, 12%, 0%, 44.3%)
CIE-LAB	lab(51.07, -4.81, -12.14)
CIE-LCH	lch(51.07, 13.06, 248.40°)
OKLab	oklab(57.62% -0.0207 -0.0332)
OKLCH	oklch(57.62% 0.039 238.1)
XYZ	xyz(17.4702, 19.3288, 28.3963)
Luminance	0.1933 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647D8E #8E7564

analogous

#648E8A #647D8E #64688E

triadic

#647D8E #8E647D #7D8E64

tetradic

#647D8E #8A648E #8E7564 #688E64

square

#647D8E #8A648E #8E7564 #688E64

split-complementary

#647D8E #8E6468 #8E8A64

monochromatic

#313E46 #4B5D6A #647D8E #869BAA #AAB9C3

Accessibility & contrast

On white

4.32

#647D8E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#647D8E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647D8E

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647D8E	#FFFFFF	#000000	##000000
##647D8E	1.00	4.32	4.87	4.87
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#767C8F

Deuteranopia (green-blind)

#70788E

Tritanopia (blue-blind)

#578182

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #647d8e;
/* rgb */ color: rgb(100, 125, 142);
/* oklch */ color: oklch(57.6% 0.039 238.1);

Tailwind

colors: {
  custom: {
    50: '#91a2af',
    500: '#647d8e',
    950: '#000000',
  },
}

SCSS

$custom: #647d8e;
$custom-light: #91a2af;
$custom-dark: #000000;

JSON

{
  "hex": "#647d8e",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 142
  },
  "hsl": {
    "h": 204.286,
    "s": 17.355,
    "l": 47.451
  },
  "oklch": {
    "l": 0.57623,
    "c": 0.03911,
    "h": 238.1
  },
  "luminance": 0.1933
}

Semantic roles & 50–950 ramp

primary

#647D8E

secondary

#B2A59C

accent

#8D6EBA

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0D0F10

muted

#7D7E7F

Preview Lab

Preview with #647D8E

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

Preview Lab → · Contrast checker → · Palette generator →