#646D22#646D22

#646D22 is a mid, moderate yellow. Relative luminance 0.138; OKLCH L 51.1% C 0.098 H 115.8°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#646D22
RGB	rgb(100, 109, 34)
HSL	hsl(67, 52%, 28%)
HSV	hsv(67, 69%, 43%)
CMYK	cmyk(8.3%, 0%, 68.8%, 57.3%)
CIE-LAB	lab(43.89, -14.39, 39.13)
CIE-LCH	lch(43.89, 41.69, 110.19°)
OKLab	oklab(51.14% -0.0428 0.0885)
OKLCH	oklch(51.14% 0.098 115.8)
XYZ	xyz(11.0132, 13.7623, 3.5893)
Luminance	0.1376 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646D22 #2B226D

analogous

#6D5022 #646D22 #3E6D22

triadic

#646D22 #22646D #6D2264

tetradic

#646D22 #226D50 #2B226D #6D223E

square

#646D22 #226D50 #2B226D #6D223E

split-complementary

#646D22 #223E6D #50226D

monochromatic

#151707 #393E13 #646D22 #8F9C31 #B5C545

Accessibility & contrast

On white

5.60

#646D22 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#646D22 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646D22

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646D22	#FFFFFF	#000000	##FFFFFF
##646D22	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#756718

Deuteranopia (green-blind)

#746827

Tritanopia (blue-blind)

#6A675E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #646d22;
/* rgb */ color: rgb(100, 109, 34);
/* oklch */ color: oklch(51.1% 0.098 115.8);

Tailwind

colors: {
  custom: {
    50: '#929662',
    500: '#646d22',
    950: '#000000',
  },
}

SCSS

$custom: #646d22;
$custom-light: #929662;
$custom-dark: #000000;

JSON

{
  "hex": "#646d22",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 34
  },
  "hsl": {
    "h": 67.2,
    "s": 52.448,
    "l": 28.039
  },
  "oklch": {
    "l": 0.51135,
    "c": 0.09834,
    "h": 115.8
  },
  "luminance": 0.13762
}

Semantic roles & 50–950 ramp

primary

#646D22

secondary

#554AA1

accent

#4CDC5D

background

#F9F9F5

surface

#F1F2EA

border

#CBCCC6

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #646D22

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

Preview Lab → · Contrast checker → · Palette generator →