#668B21#668B21

#668B21 is a mid, vivid yellow-green. Relative luminance 0.214; OKLCH L 58.8% C 0.137 H 127.3°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#668B21
RGB	rgb(102, 139, 33)
HSL	hsl(81, 62%, 34%)
HSV	hsv(81, 76%, 55%)
CMYK	cmyk(26.6%, 0%, 76.3%, 45.5%)
CIE-LAB	lab(53.38, -28.95, 49.08)
CIE-LCH	lch(53.38, 56.98, 120.53°)
OKLab	oklab(58.83% -0.0832 0.1092)
OKLCH	oklch(58.83% 0.137 127.3)
XYZ	xyz(14.9867, 21.3995, 4.7795)
Luminance	0.2140 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668B21 #46218B

analogous

#8B7B21 #668B21 #318B21

triadic

#668B21 #21668B #8B2166

tetradic

#668B21 #218B7B #46218B #8B2131

square

#668B21 #218B7B #46218B #8B2131

split-complementary

#668B21 #21318B #7B218B

monochromatic

#1D280A #425A15 #668B21 #8ABC2D #A7D651

Accessibility & contrast

On white

3.98

#668B21 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#668B21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668B21

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668B21	#FFFFFF	#000000	##000000
##668B21	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92810A

Deuteranopia (green-blind)

#8D7F2B

Tritanopia (blue-blind)

#6A8477

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #668b21;
/* rgb */ color: rgb(102, 139, 33);
/* oklch */ color: oklch(58.8% 0.137 127.3);

Tailwind

colors: {
  custom: {
    50: '#95ad65',
    500: '#668b21',
    950: '#000000',
  },
}

SCSS

$custom: #668b21;
$custom-light: #95ad65;
$custom-dark: #000000;

JSON

{
  "hex": "#668b21",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 33
  },
  "hsl": {
    "h": 80.943,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.58834,
    "c": 0.13728,
    "h": 127.3
  },
  "luminance": 0.214
}

Semantic roles & 50–950 ramp

primary

#668B21

secondary

#744FB9

accent

#43E57B

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0E1006

muted

#7E7F7A

Preview Lab

Preview with #668B21

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

Preview Lab → · Contrast checker → · Palette generator →