#668B4E#668B4E

#668B4E is a mid, moderate yellow-green. Relative luminance 0.218; OKLCH L 59.4% C 0.097 H 134.0°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX#668B4E
RGBrgb(102, 139, 78)
HSLhsl(96, 28%, 43%)
HSVhsv(96, 44%, 55%)
CMYKcmyk(26.6%, 0%, 43.9%, 45.5%)
CIE-LABlab(53.86, -24.53, 28.51)
CIE-LCHlch(53.86, 37.61, 130.71°)
OKLaboklab(59.37% -0.0673 0.0697)
OKLCHoklch(59.37% 0.097 134)
XYZxyz(16.0869, 21.8396, 10.5741)
Luminance0.2184 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#668B4E #734E8B
analogous
#858B4E #668B4E #4E8B54
triadic
#668B4E #4E668B #8B4E66
tetradic
#668B4E #4E858B #734E8B #8B544E
square
#668B4E #4E858B #734E8B #8B544E
split-complementary
#668B4E #544E8B #8B4E85
monochromatic
#2C3D22 #496438 #668B4E #84AC6B #A5C292

Accessibility & contrast

On white

3.91
#668B4E on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.37
#668B4E on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668B4E
5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##668B4E#FFFFFF#000000##000000
##668B4E1.003.915.375.37
#FFFFFF3.911.0021.0021.00
#0000005.3721.001.001.00
##0000005.3721.001.001.00

Color blindness preview

Protanopia (red-blind)
#8F8349
Deuteranopia (green-blind)
#8A8052
Tritanopia (blue-blind)
#66877C
Achromatopsia (no color)
#818181

Design tokens & code

CSS
--color: #668b4e;
/* rgb */ color: rgb(102, 139, 78);
/* oklch */ color: oklch(59.4% 0.097 134.0);
Tailwind
colors: {
  custom: {
    50: '#93ad80',
    500: '#668b4e',
    950: '#000000',
  },
}
SCSS
$custom: #668b4e;
$custom-light: #93ad80;
$custom-dark: #000000;
JSON
{
  "hex": "#668b4e",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 78
  },
  "hsl": {
    "h": 96.393,
    "s": 28.111,
    "l": 42.549
  },
  "oklch": {
    "l": 0.59369,
    "c": 0.09689,
    "h": 134
  },
  "luminance": 0.2184
}

Semantic roles & 50–950 ramp

primary
#668B4E
secondary
#9F87AE
accent
#63C49E
background
#F9FAF7
surface
#F1F4EE
border
#CBCEC9
text
#0D100A
muted
#7E7F7C

Preview Lab

Preview with #668B4E

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

Preview Lab → · Contrast checker → · Palette generator →

#668B4E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva