#646C24#646C24

#646C24 is a mid, moderate yellow. Relative luminance 0.136; OKLCH L 50.9% C 0.095 H 115.2°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#646C24
RGB	rgb(100, 108, 36)
HSL	hsl(67, 50%, 28%)
HSV	hsv(67, 67%, 42%)
CMYK	cmyk(7.4%, 0%, 66.7%, 57.6%)
CIE-LAB	lab(43.60, -13.69, 37.91)
CIE-LCH	lch(43.60, 40.31, 109.86°)
OKLab	oklab(50.91% -0.0407 0.0863)
OKLCH	oklch(50.91% 0.095 115.2)
XYZ	xyz(10.9368, 13.5620, 3.7103)
Luminance	0.1356 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646C24 #2C246C

analogous

#6C5024 #646C24 #406C24

triadic

#646C24 #24646C #6C2464

tetradic

#646C24 #246C50 #2C246C #6C2440

square

#646C24 #246C50 #2C246C #6C2440

split-complementary

#646C24 #24406C #50246C

monochromatic

#151708 #393E15 #646C24 #8E9A33 #B5C248

Accessibility & contrast

On white

5.66

#646C24 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#646C24 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646C24

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646C24	#FFFFFF	#000000	##FFFFFF
##646C24	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#74671B

Deuteranopia (green-blind)

#736829

Tritanopia (blue-blind)

#6A665D

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #646c24;
/* rgb */ color: rgb(100, 108, 36);
/* oklch */ color: oklch(50.9% 0.095 115.2);

Tailwind

colors: {
  custom: {
    50: '#929663',
    500: '#646c24',
    950: '#000000',
  },
}

SCSS

$custom: #646c24;
$custom-light: #929663;
$custom-dark: #000000;

JSON

{
  "hex": "#646c24",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 36
  },
  "hsl": {
    "h": 66.667,
    "s": 50,
    "l": 28.235
  },
  "oklch": {
    "l": 0.50906,
    "c": 0.09539,
    "h": 115.2
  },
  "luminance": 0.13562
}

Semantic roles & 50–950 ramp

primary

#646C24

secondary

#564D9F

accent

#4EDA5E

background

#F9F9F6

surface

#F1F1EB

border

#CBCBC6

text

#0D0D05

muted

#7E7E7A

Preview Lab

Preview with #646C24

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

Preview Lab → · Contrast checker → · Palette generator →