#666A56#666A56

#666A56 is a mid, muted yellow-green. Relative luminance 0.138; OKLCH L 51.5% C 0.031 H 116.7°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#666A56
RGB	rgb(102, 106, 86)
HSL	hsl(72, 10%, 38%)
HSV	hsv(72, 19%, 42%)
CMYK	cmyk(3.8%, 0%, 18.9%, 58.4%)
CIE-LAB	lab(43.95, -5.42, 10.73)
CIE-LCH	lch(43.95, 12.02, 116.78°)
OKLab	oklab(51.49% -0.0138 0.0276)
OKLCH	oklch(51.49% 0.031 116.7)
XYZ	xyz(12.3131, 13.8048, 10.8182)
Luminance	0.1381 (WCAG relative)
Temperature	neutral
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666A56 #5A566A

analogous

#6A6456 #666A56 #5C6A56

triadic

#666A56 #56666A #6A5666

tetradic

#666A56 #566A64 #5A566A #6A565C

square

#666A56 #566A64 #5A566A #6A565C

split-complementary

#666A56 #565C6A #64566A

monochromatic

#25261F #45483B #666A56 #878C71 #A3A793

Accessibility & contrast

On white

5.58

#666A56 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#666A56 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666A56

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666A56	#FFFFFF	#000000	##FFFFFF
##666A56	1.00	5.58	3.76	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D6855

Deuteranopia (green-blind)

#6D6857

Tritanopia (blue-blind)

#686864

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #666a56;
/* rgb */ color: rgb(102, 106, 86);
/* oklch */ color: oklch(51.5% 0.031 116.7);

Tailwind

colors: {
  custom: {
    50: '#919485',
    500: '#666a56',
    950: '#000000',
  },
}

SCSS

$custom: #666a56;
$custom-light: #919485;
$custom-dark: #000000;

JSON

{
  "hex": "#666a56",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 86
  },
  "hsl": {
    "h": 72,
    "s": 10.417,
    "l": 37.647
  },
  "oklch": {
    "l": 0.51488,
    "c": 0.03084,
    "h": 116.7
  },
  "luminance": 0.13805
}

Semantic roles & 50–950 ramp

primary

#666A56

secondary

#898696

accent

#74B381

background

#F8F9F8

surface

#F0F1EF

border

#CBCBCA

text

#0D0D0B

muted

#7D7E7C

Preview Lab

Preview with #666A56

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

Preview Lab → · Contrast checker → · Palette generator →