#646D10#646D10

#646D10 is a mid, moderate yellow. Relative luminance 0.137; OKLCH L 51.0% C 0.110 H 115.5°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#646D10
RGB	rgb(100, 109, 16)
HSL	hsl(66, 74%, 25%)
HSV	hsv(66, 85%, 43%)
CMYK	cmyk(8.3%, 0%, 85.3%, 57.3%)
CIE-LAB	lab(43.78, -15.35, 45.76)
CIE-LCH	lch(43.78, 48.26, 108.54°)
OKLab	oklab(51.01% -0.0472 0.0992)
OKLCH	oklch(51.01% 0.11 115.5)
XYZ	xyz(10.8180, 13.6842, 2.5615)
Luminance	0.1368 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646D10 #19106D

analogous

#6D4710 #646D10 #366D10

triadic

#646D10 #10646D #6D1064

tetradic

#646D10 #106D47 #19106D #6D1036

square

#646D10 #106D47 #19106D #6D1036

split-complementary

#646D10 #10366D #47106D

monochromatic

#181B04 #333808 #646D10 #95A218 #C6D820

Accessibility & contrast

On white

5.62

#646D10 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#646D10 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646D10

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646D10	#FFFFFF	#000000	##FFFFFF
##646D10	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#756700

Deuteranopia (green-blind)

#75681A

Tritanopia (blue-blind)

#6B665C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #646d10;
/* rgb */ color: rgb(100, 109, 16);
/* oklch */ color: oklch(51.0% 0.110 115.5);

Tailwind

colors: {
  custom: {
    50: '#939659',
    500: '#646d10',
    950: '#000000',
  },
}

SCSS

$custom: #646d10;
$custom-light: #939659;
$custom-dark: #000000;

JSON

{
  "hex": "#646d10",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 16
  },
  "hsl": {
    "h": 65.806,
    "s": 74.4,
    "l": 24.51
  },
  "oklch": {
    "l": 0.51007,
    "c": 0.10986,
    "h": 115.5
  },
  "luminance": 0.13684
}

Semantic roles & 50–950 ramp

primary

#646D10

secondary

#3F34A5

accent

#37F149

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #646D10

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

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