#666A54#666A54

#666A54 is a mid, muted yellow-green. Relative luminance 0.138; OKLCH L 51.4% C 0.034 H 116.0°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#666A54
RGB	rgb(102, 106, 84)
HSL	hsl(71, 12%, 37%)
HSV	hsv(71, 21%, 42%)
CMYK	cmyk(3.8%, 0%, 20.8%, 58.4%)
CIE-LAB	lab(43.91, -5.76, 11.86)
CIE-LCH	lch(43.91, 13.19, 115.91°)
OKLab	oklab(51.44% -0.0148 0.0303)
OKLCH	oklch(51.44% 0.034 116)
XYZ	xyz(12.2336, 13.7730, 10.3998)
Luminance	0.1377 (WCAG relative)
Temperature	neutral
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666A54 #58546A

analogous

#6A6354 #666A54 #5B6A54

triadic

#666A54 #54666A #6A5466

tetradic

#666A54 #546A63 #58546A #6A545B

square

#666A54 #546A63 #58546A #6A545B

split-complementary

#666A54 #545B6A #63546A

monochromatic

#24261E #454839 #666A54 #878C6F #A3A891

Accessibility & contrast

On white

5.59

#666A54 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#666A54 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666A54

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666A54	#FFFFFF	#000000	##FFFFFF
##666A54	1.00	5.59	3.75	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D6853

Deuteranopia (green-blind)

#6D6855

Tritanopia (blue-blind)

#696764

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #666a54;
/* rgb */ color: rgb(102, 106, 84);
/* oklch */ color: oklch(51.4% 0.034 116.0);

Tailwind

colors: {
  custom: {
    50: '#919484',
    500: '#666a54',
    950: '#000000',
  },
}

SCSS

$custom: #666a54;
$custom-light: #919484;
$custom-dark: #000000;

JSON

{
  "hex": "#666a54",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 84
  },
  "hsl": {
    "h": 70.909,
    "s": 11.579,
    "l": 37.255
  },
  "oklch": {
    "l": 0.51436,
    "c": 0.03375,
    "h": 116
  },
  "luminance": 0.13773
}

Semantic roles & 50–950 ramp

primary

#666A54

secondary

#878496

accent

#73B47F

background

#F8F9F8

surface

#F0F1EF

border

#CBCBCA

text

#0D0D0A

muted

#7D7E7C

Preview Lab

Preview with #666A54

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

Preview Lab → · Contrast checker → · Palette generator →