#666E4E#666E4E

#666E4E is a mid, muted yellow-green. Relative luminance 0.145; OKLCH L 52.2% C 0.049 H 119.5°. Best body text is #FFFFFF at 5.38:1 contrast (WCAG AA passes).

Color values

HEX#666E4E
RGBrgb(102, 110, 78)
HSLhsl(75, 17%, 37%)
HSVhsv(75, 29%, 43%)
CMYKcmyk(7.3%, 0%, 29.1%, 56.9%)
CIE-LABlab(44.98, -9.04, 16.88)
CIE-LCHlch(44.98, 19.15, 118.18°)
OKLaboklab(52.25% -0.0241 0.0425)
OKLCHoklch(52.25% 0.049 119.5)
XYZxyz(12.4305, 14.5267, 9.3553)
Luminance0.1453 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#666E4E #564E6E
analogous
#6E664E #666E4E #566E4E
triadic
#666E4E #4E666E #6E4E66
tetradic
#666E4E #4E6E66 #564E6E #6E4E56
square
#666E4E #4E6E66 #564E6E #6E4E56
split-complementary
#666E4E #4E566E #664E6E
monochromatic
#24261B #454A35 #666E4E #879267 #A4AC8A

Accessibility & contrast

On white

5.38
#666E4E on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.91
#666E4E on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666E4E
5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##666E4E#FFFFFF#000000##FFFFFF
##666E4E1.005.383.915.38
#FFFFFF5.381.0021.001.00
#0000003.9121.001.0021.00
##FFFFFF5.381.0021.001.00

Color blindness preview

Protanopia (red-blind)
#726A4C
Deuteranopia (green-blind)
#716B4F
Tritanopia (blue-blind)
#696B66
Achromatopsia (no color)
#6A6A6A

Design tokens & code

CSS
--color: #666e4e;
/* rgb */ color: rgb(102, 110, 78);
/* oklch */ color: oklch(52.2% 0.049 119.5);
Tailwind
colors: {
  custom: {
    50: '#92977f',
    500: '#666e4e',
    950: '#000000',
  },
}
SCSS
$custom: #666e4e;
$custom-light: #92977f;
$custom-dark: #000000;
JSON
{
  "hex": "#666e4e",
  "rgb": {
    "r": 102,
    "g": 110,
    "b": 78
  },
  "hsl": {
    "h": 75,
    "s": 17.021,
    "l": 36.863
  },
  "oklch": {
    "l": 0.52247,
    "c": 0.04883,
    "h": 119.5
  },
  "luminance": 0.14527
}

Semantic roles & 50–950 ramp

primary
#666E4E
secondary
#857E9A
accent
#6EBA81
background
#F9F9F7
surface
#F1F2EE
border
#CBCCC9
text
#0D0D0A
muted
#7E7E7C

Preview Lab

Preview with #666E4E

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

Preview Lab → · Contrast checker → · Palette generator →

#666E4E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva