#66801B#66801B

#66801B is a mid, vivid yellow-green. Relative luminance 0.183; OKLCH L 56.0% C 0.127 H 123.5°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#66801B
RGB	rgb(102, 128, 27)
HSL	hsl(75, 65%, 30%)
HSV	hsv(75, 79%, 50%)
CMYK	cmyk(20.3%, 0%, 78.9%, 49.8%)
CIE-LAB	lab(49.91, -23.88, 47.87)
CIE-LCH	lch(49.91, 53.50, 116.51°)
OKLab	oklab(56.01% -0.0699 0.1056)
OKLCH	oklch(56.01% 0.127 123.5)
XYZ	xyz(13.3967, 18.3422, 3.8713)
Luminance	0.1834 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66801B #351B80

analogous

#80681B #66801B #33801B

triadic

#66801B #1B6680 #801B66

tetradic

#66801B #1B8068 #351B80 #801B33

square

#66801B #1B8068 #351B80 #801B33

split-complementary

#66801B #1B3380 #681B80

monochromatic

#151B06 #3E4D10 #66801B #8EB326 #AFD63F

Accessibility & contrast

On white

4.50

#66801B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#66801B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66801B

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66801B	#FFFFFF	#000000	##000000
##66801B	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#887702

Deuteranopia (green-blind)

#847725

Tritanopia (blue-blind)

#6B796D

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #66801b;
/* rgb */ color: rgb(102, 128, 27);
/* oklch */ color: oklch(56.0% 0.127 123.5);

Tailwind

colors: {
  custom: {
    50: '#95a560',
    500: '#66801b',
    950: '#000000',
  },
}

SCSS

$custom: #66801b;
$custom-light: #95a560;
$custom-dark: #000000;

JSON

{
  "hex": "#66801b",
  "rgb": {
    "r": 102,
    "g": 128,
    "b": 27
  },
  "hsl": {
    "h": 75.446,
    "s": 65.161,
    "l": 30.392
  },
  "oklch": {
    "l": 0.56006,
    "c": 0.12665,
    "h": 123.5
  },
  "luminance": 0.18342
}

Semantic roles & 50–950 ramp

primary

#66801B

secondary

#6043B4

accent

#40E86B

background

#F9FAF5

surface

#F2F4EA

border

#CCCEC6

text

#0E0F05

muted

#7E7F79

Preview Lab

Preview with #66801B

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

Preview Lab → · Contrast checker → · Palette generator →