#666E5A#666E5A

#666E5A is a mid, muted yellow-green. Relative luminance 0.147; OKLCH L 52.5% C 0.032 H 125.2°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#666E5A
RGB	rgb(102, 110, 90)
HSL	hsl(84, 10%, 39%)
HSV	hsv(84, 18%, 43%)
CMYK	cmyk(7.3%, 0%, 18.2%, 56.9%)
CIE-LAB	lab(45.24, -7.01, 10.15)
CIE-LCH	lch(45.24, 12.34, 124.64°)
OKLab	oklab(52.54% -0.0184 0.0261)
OKLCH	oklch(52.54% 0.032 125.2)
XYZ	xyz(12.9006, 14.7148, 11.8315)
Luminance	0.1472 (WCAG relative)
Temperature	neutral
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666E5A #625A6E

analogous

#6E6C5A #666E5A #5C6E5A

triadic

#666E5A #5A666E #6E5A66

tetradic

#666E5A #5A6E6C #625A6E #6E5A5C

square

#666E5A #5A6E6C #625A6E #6E5A5C

split-complementary

#666E5A #5A5C6E #6C5A6E

monochromatic

#282B23 #474C3E #666E5A #858F76 #A3AB98

Accessibility & contrast

On white

5.33

#666E5A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#666E5A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666E5A

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666E5A	#FFFFFF	#000000	##FFFFFF
##666E5A	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#706B59

Deuteranopia (green-blind)

#6F6B5B

Tritanopia (blue-blind)

#676C68

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #666e5a;
/* rgb */ color: rgb(102, 110, 90);
/* oklch */ color: oklch(52.5% 0.032 125.2);

Tailwind

colors: {
  custom: {
    50: '#919788',
    500: '#666e5a',
    950: '#000000',
  },
}

SCSS

$custom: #666e5a;
$custom-light: #919788;
$custom-dark: #000000;

JSON

{
  "hex": "#666e5a",
  "rgb": {
    "r": 102,
    "g": 110,
    "b": 90
  },
  "hsl": {
    "h": 84,
    "s": 10,
    "l": 39.216
  },
  "oklch": {
    "l": 0.52541,
    "c": 0.03197,
    "h": 125.2
  },
  "luminance": 0.14715
}

Semantic roles & 50–950 ramp

primary

#666E5A

secondary

#908A9A

accent

#75B38E

background

#F8F9F8

surface

#F0F2EF

border

#CBCCCA

text

#0C0D0B

muted

#7D7E7C

Preview Lab

Preview with #666E5A

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

Preview Lab → · Contrast checker → · Palette generator →