#66851B#66851B

#66851B is a mid, vivid yellow-green. Relative luminance 0.197; OKLCH L 57.3% C 0.133 H 125.2°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#66851B
RGB	rgb(102, 133, 27)
HSL	hsl(78, 66%, 31%)
HSV	hsv(78, 80%, 52%)
CMYK	cmyk(23.3%, 0%, 79.7%, 47.8%)
CIE-LAB	lab(51.47, -26.36, 49.33)
CIE-LCH	lch(51.47, 55.93, 118.12°)
OKLab	oklab(57.27% -0.0766 0.1087)
OKLCH	oklch(57.27% 0.133 125.2)
XYZ	xyz(14.0650, 19.6788, 4.0941)
Luminance	0.1968 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66851B #3A1B85

analogous

#856F1B #66851B #31851B

triadic

#66851B #1B6685 #851B66

tetradic

#66851B #1B856F #3A1B85 #851B31

square

#66851B #1B856F #3A1B85 #851B31

split-complementary

#66851B #1B3185 #6F1B85

monochromatic

#181F06 #3F5211 #66851B #8DB825 #ACD942

Accessibility & contrast

On white

4.25

#66851B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#66851B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66851B

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66851B	#FFFFFF	#000000	##000000
##66851B	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7C00

Deuteranopia (green-blind)

#887A26

Tritanopia (blue-blind)

#6B7E71

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #66851b;
/* rgb */ color: rgb(102, 133, 27);
/* oklch */ color: oklch(57.3% 0.133 125.2);

Tailwind

colors: {
  custom: {
    50: '#95a861',
    500: '#66851b',
    950: '#000000',
  },
}

SCSS

$custom: #66851b;
$custom-light: #95a861;
$custom-dark: #000000;

JSON

{
  "hex": "#66851b",
  "rgb": {
    "r": 102,
    "g": 133,
    "b": 27
  },
  "hsl": {
    "h": 77.547,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.57272,
    "c": 0.133,
    "h": 125.2
  },
  "luminance": 0.19679
}

Semantic roles & 50–950 ramp

primary

#66851B

secondary

#6644B8

accent

#3FE971

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0E0F05

muted

#7E7F7A

Preview Lab

Preview with #66851B

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

Preview Lab → · Contrast checker → · Palette generator →