#666F16#666F16

#666F16 is a mid, moderate yellow. Relative luminance 0.143; OKLCH L 51.7% C 0.108 H 115.4°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#666F16
RGB	rgb(102, 111, 22)
HSL	hsl(66, 67%, 26%)
HSV	hsv(66, 80%, 44%)
CMYK	cmyk(8.1%, 0%, 80.2%, 56.5%)
CIE-LAB	lab(44.59, -15.25, 44.65)
CIE-LCH	lch(44.59, 47.18, 108.86°)
OKLab	oklab(51.71% -0.0466 0.0979)
OKLCH	oklch(51.71% 0.108 115.4)
XYZ	xyz(11.3091, 14.2518, 2.9140)
Luminance	0.1425 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666F16 #1F166F

analogous

#6F4B16 #666F16 #396F16

triadic

#666F16 #16666F #6F1666

tetradic

#666F16 #166F4B #1F166F #6F1639

square

#666F16 #166F4B #1F166F #6F1639

split-complementary

#666F16 #16396F #4B166F

monochromatic

#171A05 #373C0C #666F16 #95A220 #C4D52B

Accessibility & contrast

On white

5.45

#666F16 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#666F16 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666F16

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666F16	#FFFFFF	#000000	##FFFFFF
##666F16	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#776901

Deuteranopia (green-blind)

#776A1E

Tritanopia (blue-blind)

#6D685E

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #666f16;
/* rgb */ color: rgb(102, 111, 22);
/* oklch */ color: oklch(51.7% 0.108 115.4);

Tailwind

colors: {
  custom: {
    50: '#95985c',
    500: '#666f16',
    950: '#000000',
  },
}

SCSS

$custom: #666f16;
$custom-light: #95985c;
$custom-dark: #000000;

JSON

{
  "hex": "#666f16",
  "rgb": {
    "r": 102,
    "g": 111,
    "b": 22
  },
  "hsl": {
    "h": 66.067,
    "s": 66.917,
    "l": 26.078
  },
  "oklch": {
    "l": 0.51713,
    "c": 0.1084,
    "h": 115.4
  },
  "luminance": 0.14252
}

Semantic roles & 50–950 ramp

primary

#666F16

secondary

#463CA5

accent

#3EEA4F

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0E0D04

muted

#7E7E79

Preview Lab

Preview with #666F16

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

Preview Lab → · Contrast checker → · Palette generator →