#646E19#646E19

#646E19 is a mid, moderate yellow. Relative luminance 0.139; OKLCH L 51.3% C 0.106 H 116.2°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#646E19
RGB	rgb(100, 110, 25)
HSL	hsl(67, 63%, 26%)
HSV	hsv(67, 77%, 43%)
CMYK	cmyk(9.1%, 0%, 77.3%, 56.9%)
CIE-LAB	lab(44.13, -15.49, 43.08)
CIE-LCH	lch(44.13, 45.78, 109.77°)
OKLab	oklab(51.31% -0.0468 0.0952)
OKLCH	oklch(51.31% 0.106 116.2)
XYZ	xyz(11.0072, 13.9315, 3.0287)
Luminance	0.1393 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646E19 #23196E

analogous

#6E4E19 #646E19 #3A6E19

triadic

#646E19 #19646E #6E1964

tetradic

#646E19 #196E4E #23196E #6E193A

square

#646E19 #196E4E #23196E #6E193A

split-complementary

#646E19 #193A6E #4E196E

monochromatic

#171906 #373C0E #646E19 #91A024 #BED031

Accessibility & contrast

On white

5.55

#646E19 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#646E19 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646E19

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646E19	#FFFFFF	#000000	##FFFFFF
##646E19	1.00	5.55	3.79	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#766807

Deuteranopia (green-blind)

#756920

Tritanopia (blue-blind)

#6B675E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #646e19;
/* rgb */ color: rgb(100, 110, 25);
/* oklch */ color: oklch(51.3% 0.106 116.2);

Tailwind

colors: {
  custom: {
    50: '#93975d',
    500: '#646e19',
    950: '#000000',
  },
}

SCSS

$custom: #646e19;
$custom-light: #93975d;
$custom-dark: #000000;

JSON

{
  "hex": "#646e19",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 25
  },
  "hsl": {
    "h": 67.059,
    "s": 62.963,
    "l": 26.471
  },
  "oklch": {
    "l": 0.5131,
    "c": 0.10612,
    "h": 116.2
  },
  "luminance": 0.13931
}

Semantic roles & 50–950 ramp

primary

#646E19

secondary

#4B3FA3

accent

#42E655

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #646E19

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

Preview Lab → · Contrast checker → · Palette generator →