#646870#646870

#646870 is a mid, near-neutral grey. Relative luminance 0.138; OKLCH L 51.7% C 0.014 H 264.4°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#646870
RGB	rgb(100, 104, 112)
HSL	hsl(220, 6%, 42%)
HSV	hsv(220, 11%, 44%)
CMYK	cmyk(10.7%, 7.1%, 0%, 56.1%)
CIE-LAB	lab(43.92, 0.21, -5.01)
CIE-LCH	lch(43.92, 5.01, 272.45°)
OKLab	oklab(51.66% -0.0013 -0.0135)
OKLCH	oklch(51.66% 0.014 264.4)
XYZ	xyz(13.1298, 13.7797, 17.2941)
Luminance	0.1378 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646870 #706C64

analogous

#646E70 #646870 #666470

triadic

#646870 #706468 #687064

tetradic

#646870 #70646E #706C64 #647066

square

#646870 #70646E #706C64 #647066

split-complementary

#646870 #706664 #6E7064

monochromatic

#2A2C2F #474A50 #646870 #82868F #A2A6AC

Accessibility & contrast

On white

5.59

#646870 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#646870 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646870

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646870	#FFFFFF	#000000	##FFFFFF
##646870	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#666870

Deuteranopia (green-blind)

#656770

Tritanopia (blue-blind)

#616A6A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #646870;
/* rgb */ color: rgb(100, 104, 112);
/* oklch */ color: oklch(51.7% 0.014 264.4);

Tailwind

colors: {
  custom: {
    50: '#909399',
    500: '#646870',
    950: '#000000',
  },
}

SCSS

$custom: #646870;
$custom-light: #909399;
$custom-dark: #000000;

JSON

{
  "hex": "#646870",
  "rgb": {
    "r": 100,
    "g": 104,
    "b": 112
  },
  "hsl": {
    "h": 220,
    "s": 5.66,
    "l": 41.569
  },
  "oklch": {
    "l": 0.51656,
    "c": 0.01352,
    "h": 264.4
  },
  "luminance": 0.1378
}

Semantic roles & 50–950 ramp

primary

#646870

secondary

#9C9994

accent

#9D79AF

background

#F8F9F9

surface

#F0F1F2

border

#CBCBCC

text

#0C0D0D

muted

#7D7E7E

Preview Lab

Preview with #646870

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

Preview Lab → · Contrast checker → · Palette generator →