#646858#646858

#646858 is a mid, muted yellow-green. Relative luminance 0.133; OKLCH L 50.9% C 0.025 H 118.7°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#646858
RGB	rgb(100, 104, 88)
HSL	hsl(75, 8%, 38%)
HSV	hsv(75, 15%, 41%)
CMYK	cmyk(3.8%, 0%, 15.4%, 59.2%)
CIE-LAB	lab(43.23, -4.71, 8.50)
CIE-LCH	lch(43.23, 9.72, 119.01°)
OKLab	oklab(50.89% -0.012 0.022)
OKLCH	oklch(50.89% 0.025 118.7)
XYZ	xyz(11.9671, 13.3146, 11.1701)
Luminance	0.1331 (WCAG relative)
Temperature	neutral
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646858 #5C5868

analogous

#686458 #646858 #5C6858

triadic

#646858 #586468 #685864

tetradic

#646858 #586864 #5C5868 #68585C

square

#646858 #586864 #5C5868 #68585C

split-complementary

#646858 #585C68 #645868

monochromatic

#242620 #44473C #646858 #848974 #A1A595

Accessibility & contrast

On white

5.73

#646858 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#646858 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646858

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646858	#FFFFFF	#000000	##FFFFFF
##646858	1.00	5.73	3.66	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A6657

Deuteranopia (green-blind)

#6A6659

Tritanopia (blue-blind)

#666663

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #646858;
/* rgb */ color: rgb(100, 104, 88);
/* oklch */ color: oklch(50.9% 0.025 118.7);

Tailwind

colors: {
  custom: {
    50: '#909387',
    500: '#646858',
    950: '#000000',
  },
}

SCSS

$custom: #646858;
$custom-light: #909387;
$custom-dark: #000000;

JSON

{
  "hex": "#646858",
  "rgb": {
    "r": 100,
    "g": 104,
    "b": 88
  },
  "hsl": {
    "h": 75,
    "s": 8.333,
    "l": 37.647
  },
  "oklch": {
    "l": 0.50893,
    "c": 0.02504,
    "h": 118.7
  },
  "luminance": 0.13315
}

Semantic roles & 50–950 ramp

primary

#646858

secondary

#8B8794

accent

#76B185

background

#F8F9F8

surface

#F0F1EF

border

#CBCBCA

text

#0C0D0B

muted

#7D7E7C

Preview Lab

Preview with #646858

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

Preview Lab → · Contrast checker → · Palette generator →