#666F10#666F10

#666F10 is a mid, moderate yellow. Relative luminance 0.142; OKLCH L 51.7% C 0.111 H 115.4°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#666F10
RGB	rgb(102, 111, 16)
HSL	hsl(66, 75%, 25%)
HSV	hsv(66, 86%, 44%)
CMYK	cmyk(8.1%, 0%, 85.6%, 56.5%)
CIE-LAB	lab(44.56, -15.50, 46.50)
CIE-LCH	lch(44.56, 49.02, 108.43°)
OKLab	oklab(51.68% -0.0477 0.1007)
OKLCH	oklch(51.68% 0.111 115.4)
XYZ	xyz(11.2578, 14.2313, 2.6440)
Luminance	0.1423 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666F10 #19106F

analogous

#6F4810 #666F10 #376F10

triadic

#666F10 #10666F #6F1066

tetradic

#666F10 #106F48 #19106F #6F1037

square

#666F10 #106F48 #19106F #6F1037

split-complementary

#666F10 #10376F #48106F

monochromatic

#191B04 #353A08 #666F10 #97A418 #C8DA1F

Accessibility & contrast

On white

5.46

#666F10 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#666F10 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666F10

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666F10	#FFFFFF	#000000	##FFFFFF
##666F10	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#786900

Deuteranopia (green-blind)

#776A1A

Tritanopia (blue-blind)

#6D685E

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #666f10;
/* rgb */ color: rgb(102, 111, 16);
/* oklch */ color: oklch(51.7% 0.111 115.4);

Tailwind

colors: {
  custom: {
    50: '#959859',
    500: '#666f10',
    950: '#000000',
  },
}

SCSS

$custom: #666f10;
$custom-light: #959859;
$custom-dark: #000000;

JSON

{
  "hex": "#666f10",
  "rgb": {
    "r": 102,
    "g": 111,
    "b": 16
  },
  "hsl": {
    "h": 65.684,
    "s": 74.803,
    "l": 24.902
  },
  "oklch": {
    "l": 0.5168,
    "c": 0.11145,
    "h": 115.4
  },
  "luminance": 0.14231
}

Semantic roles & 50–950 ramp

primary

#666F10

secondary

#3F34A7

accent

#36F148

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0E0D04

muted

#7E7E79

Preview Lab

Preview with #666F10

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

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