#646A17#646A17

#646A17 is a mid, moderate yellow. Relative luminance 0.131; OKLCH L 50.3% C 0.103 H 113.7°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#646A17
RGB	rgb(100, 106, 23)
HSL	hsl(64, 64%, 25%)
HSV	hsv(64, 78%, 42%)
CMYK	cmyk(5.7%, 0%, 78.3%, 58.4%)
CIE-LAB	lab(42.88, -13.40, 42.64)
CIE-LCH	lch(42.88, 44.70, 107.45°)
OKLab	oklab(50.3% -0.0412 0.0939)
OKLCH	oklch(50.3% 0.103 113.7)
XYZ	xyz(10.5645, 13.0795, 2.7785)
Luminance	0.1308 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646A17 #1D176A

analogous

#6A4617 #646A17 #3B6A17

triadic

#646A17 #17646A #6A1764

tetradic

#646A17 #176A46 #1D176A #6A173B

square

#646A17 #176A46 #1D176A #6A173B

split-complementary

#646A17 #173B6A #46176A

monochromatic

#181905 #35380C #646A17 #939C22 #C3CF2D

Accessibility & contrast

On white

5.81

#646A17 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#646A17 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646A17

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646A17	#FFFFFF	#000000	##FFFFFF
##646A17	1.00	5.81	3.62	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#726405

Deuteranopia (green-blind)

#72661E

Tritanopia (blue-blind)

#6B635A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #646a17;
/* rgb */ color: rgb(100, 106, 23);
/* oklch */ color: oklch(50.3% 0.103 113.7);

Tailwind

colors: {
  custom: {
    50: '#93945b',
    500: '#646a17',
    950: '#000000',
  },
}

SCSS

$custom: #646a17;
$custom-light: #93945b;
$custom-dark: #000000;

JSON

{
  "hex": "#646a17",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 23
  },
  "hsl": {
    "h": 64.337,
    "s": 64.341,
    "l": 25.294
  },
  "oklch": {
    "l": 0.50302,
    "c": 0.10257,
    "h": 113.7
  },
  "luminance": 0.13079
}

Semantic roles & 50–950 ramp

primary

#646A17

secondary

#443DA0

accent

#40E74D

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #646A17

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

Preview Lab → · Contrast checker → · Palette generator →