#646458#646458

#646458 is a mid, near-neutral grey. Relative luminance 0.125; OKLCH L 50.0% C 0.019 H 107.0°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#646458
RGB	rgb(100, 100, 88)
HSL	hsl(60, 6%, 37%)
HSV	hsv(60, 12%, 39%)
CMYK	cmyk(0%, 0%, 12%, 60.8%)
CIE-LAB	lab(42.04, -2.36, 6.82)
CIE-LCH	lch(42.04, 7.21, 109.09°)
OKLab	oklab(49.95% -0.0054 0.0177)
OKLCH	oklch(49.95% 0.019 107)
XYZ	xyz(11.5740, 12.5283, 11.0391)
Luminance	0.1253 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646458 #585864

analogous

#645E58 #646458 #5E6458

triadic

#646458 #586464 #645864

tetradic

#646458 #58645E #585864 #64585E

square

#646458 #58645E #585864 #64585E

split-complementary

#646458 #585E64 #5E5864

monochromatic

#23231F #43433B #646458 #858575 #A2A295

Accessibility & contrast

On white

5.99

#646458 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#646458 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646458

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646458	#FFFFFF	#000000	##FFFFFF
##646458	1.00	5.99	3.51	5.99
#FFFFFF	5.99	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#666357

Deuteranopia (green-blind)

#666358

Tritanopia (blue-blind)

#666261

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #646458;
/* rgb */ color: rgb(100, 100, 88);
/* oklch */ color: oklch(50.0% 0.019 107.0);

Tailwind

colors: {
  custom: {
    50: '#909087',
    500: '#646458',
    950: '#000000',
  },
}

SCSS

$custom: #646458;
$custom-light: #909087;
$custom-dark: #000000;

JSON

{
  "hex": "#646458",
  "rgb": {
    "r": 100,
    "g": 100,
    "b": 88
  },
  "hsl": {
    "h": 60,
    "s": 6.383,
    "l": 36.863
  },
  "oklch": {
    "l": 0.49953,
    "c": 0.01852,
    "h": 107
  },
  "luminance": 0.12528
}

Semantic roles & 50–950 ramp

primary

#646458

secondary

#878791

accent

#78AF78

background

#F8F8F8

surface

#F0F0EF

border

#CBCBCA

text

#0C0C0B

muted

#7D7D7C

Preview Lab

Preview with #646458

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

Preview Lab → · Contrast checker → · Palette generator →