#646F17#646F17

#646F17 is a mid, moderate yellow. Relative luminance 0.141; OKLCH L 51.5% C 0.109 H 116.7°. Best body text is #FFFFFF at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#646F17
RGB	rgb(100, 111, 23)
HSL	hsl(68, 66%, 26%)
HSV	hsv(68, 79%, 44%)
CMYK	cmyk(9.9%, 0%, 79.3%, 56.5%)
CIE-LAB	lab(44.43, -16.13, 44.09)
CIE-LCH	lch(44.43, 46.95, 110.09°)
OKLab	oklab(51.55% -0.0488 0.097)
OKLCH	oklch(51.55% 0.109 116.7)
XYZ	xyz(11.0949, 14.1402, 2.9553)
Luminance	0.1414 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646F17 #22176F

analogous

#6F4E17 #646F17 #386F17

triadic

#646F17 #17646F #6F1764

tetradic

#646F17 #176F4E #22176F #6F1738

square

#646F17 #176F4E #22176F #6F1738

split-complementary

#646F17 #17386F #4E176F

monochromatic

#171905 #363C0C #646F17 #92A222 #BFD32D

Accessibility & contrast

On white

5.49

#646F17 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#646F17 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646F17

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646F17	#FFFFFF	#000000	##FFFFFF
##646F17	1.00	5.49	3.83	5.49
#FFFFFF	5.49	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#776903

Deuteranopia (green-blind)

#766A1F

Tritanopia (blue-blind)

#6B685E

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #646f17;
/* rgb */ color: rgb(100, 111, 23);
/* oklch */ color: oklch(51.5% 0.109 116.7);

Tailwind

colors: {
  custom: {
    50: '#93985c',
    500: '#646f17',
    950: '#000000',
  },
}

SCSS

$custom: #646f17;
$custom-light: #93985c;
$custom-dark: #000000;

JSON

{
  "hex": "#646f17",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 23
  },
  "hsl": {
    "h": 67.5,
    "s": 65.672,
    "l": 26.275
  },
  "oklch": {
    "l": 0.51546,
    "c": 0.10856,
    "h": 116.7
  },
  "luminance": 0.1414
}

Semantic roles & 50–950 ramp

primary

#646F17

secondary

#4A3DA5

accent

#3FE954

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #646F17

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

Preview Lab → · Contrast checker → · Palette generator →