#66811B#66811B

#66811B is a mid, vivid yellow-green. Relative luminance 0.186; OKLCH L 56.3% C 0.128 H 123.8°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#66811B
RGB	rgb(102, 129, 27)
HSL	hsl(76, 65%, 31%)
HSV	hsv(76, 79%, 51%)
CMYK	cmyk(20.9%, 0%, 79.1%, 49.4%)
CIE-LAB	lab(50.22, -24.38, 48.16)
CIE-LCH	lch(50.22, 53.98, 116.85°)
OKLab	oklab(56.26% -0.0712 0.1063)
OKLCH	oklch(56.26% 0.128 123.8)
XYZ	xyz(13.5277, 18.6043, 3.9150)
Luminance	0.1860 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66811B #361B81

analogous

#81691B #66811B #33811B

triadic

#66811B #1B6681 #811B66

tetradic

#66811B #1B8169 #361B81 #811B33

square

#66811B #1B8169 #361B81 #811B33

split-complementary

#66811B #1B3381 #691B81

monochromatic

#161C06 #3E4E10 #66811B #8EB426 #AFD73F

Accessibility & contrast

On white

4.45

#66811B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#66811B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66811B

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66811B	#FFFFFF	#000000	##000000
##66811B	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#897801

Deuteranopia (green-blind)

#857725

Tritanopia (blue-blind)

#6B7A6E

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #66811b;
/* rgb */ color: rgb(102, 129, 27);
/* oklch */ color: oklch(56.3% 0.128 123.8);

Tailwind

colors: {
  custom: {
    50: '#95a560',
    500: '#66811b',
    950: '#000000',
  },
}

SCSS

$custom: #66811b;
$custom-light: #95a560;
$custom-dark: #000000;

JSON

{
  "hex": "#66811b",
  "rgb": {
    "r": 102,
    "g": 129,
    "b": 27
  },
  "hsl": {
    "h": 75.882,
    "s": 65.385,
    "l": 30.588
  },
  "oklch": {
    "l": 0.56259,
    "c": 0.12792,
    "h": 123.8
  },
  "luminance": 0.18604
}

Semantic roles & 50–950 ramp

primary

#66811B

secondary

#6143B5

accent

#3FE86C

background

#F9FAF5

surface

#F2F4EA

border

#CCCEC6

text

#0E0F05

muted

#7E7F79

Preview Lab

Preview with #66811B

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

Preview Lab → · Contrast checker → · Palette generator →