#646E52#646E52

#646E52 is a mid, muted yellow-green. Relative luminance 0.145; OKLCH L 52.2% C 0.044 H 123.9°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#646E52
RGB	rgb(100, 110, 82)
HSL	hsl(81, 15%, 38%)
HSV	hsv(81, 25%, 43%)
CMYK	cmyk(9.1%, 0%, 25.5%, 56.9%)
CIE-LAB	lab(44.90, -9.22, 14.40)
CIE-LCH	lch(44.90, 17.10, 122.65°)
OKLab	oklab(52.17% -0.0245 0.0365)
OKLCH	oklch(52.17% 0.044 123.9)
XYZ	xyz(12.3543, 14.4704, 10.1232)
Luminance	0.1447 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646E52 #5C526E

analogous

#6E6A52 #646E52 #566E52

triadic

#646E52 #52646E #6E5264

tetradic

#646E52 #526E6A #5C526E #6E5256

square

#646E52 #526E6A #5C526E #6E5256

split-complementary

#646E52 #52566E #6A526E

monochromatic

#24281E #444B38 #646E52 #84916C #A1AB8F

Accessibility & contrast

On white

5.39

#646E52 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#646E52 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646E52

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646E52	#FFFFFF	#000000	##FFFFFF
##646E52	1.00	5.39	3.89	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#716A50

Deuteranopia (green-blind)

#706A53

Tritanopia (blue-blind)

#666B66

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #646e52;
/* rgb */ color: rgb(100, 110, 82);
/* oklch */ color: oklch(52.2% 0.044 123.9);

Tailwind

colors: {
  custom: {
    50: '#909782',
    500: '#646e52',
    950: '#000000',
  },
}

SCSS

$custom: #646e52;
$custom-light: #909782;
$custom-dark: #000000;

JSON

{
  "hex": "#646e52",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 82
  },
  "hsl": {
    "h": 81.429,
    "s": 14.583,
    "l": 37.647
  },
  "oklch": {
    "l": 0.52171,
    "c": 0.04401,
    "h": 123.9
  },
  "luminance": 0.1447
}

Semantic roles & 50–950 ramp

primary

#646E52

secondary

#8B8299

accent

#70B78A

background

#F8F9F8

surface

#F0F2EF

border

#CBCCCA

text

#0C0D0A

muted

#7D7E7C

Preview Lab

Preview with #646E52

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

Preview Lab → · Contrast checker → · Palette generator →