#66901B#66901B

#66901B is a mid, vivid yellow-green. Relative luminance 0.229; OKLCH L 60.1% C 0.147 H 128.2°. Best body text is #000000 at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#66901B
RGB	rgb(102, 144, 27)
HSL	hsl(82, 68%, 34%)
HSV	hsv(82, 81%, 56%)
CMYK	cmyk(29.2%, 0%, 81.3%, 43.5%)
CIE-LAB	lab(54.92, -31.63, 52.50)
CIE-LCH	lch(54.92, 61.29, 121.06°)
OKLab	oklab(60.07% -0.0909 0.1154)
OKLCH	oklch(60.07% 0.147 128.2)
XYZ	xyz(15.6506, 22.8500, 4.6226)
Luminance	0.2285 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66901B #451B90

analogous

#907F1B #66901B #2C901B

triadic

#66901B #1B6690 #901B66

tetradic

#66901B #1B907F #451B90 #901B2C

square

#66901B #1B907F #451B90 #901B2C

split-complementary

#66901B #1B2C90 #7F1B90

monochromatic

#1D2908 #415C11 #66901B #8BC425 #A8DD49

Accessibility & contrast

On white

3.77

#66901B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.57

#66901B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66901B

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66901B	#FFFFFF	#000000	##000000
##66901B	1.00	3.77	5.57	5.57
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.57	21.00	1.00	1.00
##000000	5.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#978500

Deuteranopia (green-blind)

#928328

Tritanopia (blue-blind)

#6A897B

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #66901b;
/* rgb */ color: rgb(102, 144, 27);
/* oklch */ color: oklch(60.1% 0.147 128.2);

Tailwind

colors: {
  custom: {
    50: '#96b063',
    500: '#66901b',
    950: '#000000',
  },
}

SCSS

$custom: #66901b;
$custom-light: #96b063;
$custom-dark: #000000;

JSON

{
  "hex": "#66901b",
  "rgb": {
    "r": 102,
    "g": 144,
    "b": 27
  },
  "hsl": {
    "h": 81.538,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.60069,
    "c": 0.14693,
    "h": 128.2
  },
  "luminance": 0.2285
}

Semantic roles & 50–950 ramp

primary

#66901B

secondary

#7348BF

accent

#3DEB7B

background

#F9FAF6

surface

#F2F5EB

border

#CCCFC6

text

#0E1006

muted

#7E7F7A

Preview Lab

Preview with #66901B

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

Preview Lab → · Contrast checker → · Palette generator →