#646A19#646A19

#646A19 is a mid, moderate yellow. Relative luminance 0.131; OKLCH L 50.3% C 0.101 H 113.7°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#646A19
RGB	rgb(100, 106, 25)
HSL	hsl(64, 62%, 26%)
HSV	hsv(64, 76%, 42%)
CMYK	cmyk(5.7%, 0%, 76.4%, 58.4%)
CIE-LAB	lab(42.90, -13.30, 41.90)
CIE-LCH	lch(42.90, 43.96, 107.61°)
OKLab	oklab(50.32% -0.0408 0.0927)
OKLCH	oklch(50.32% 0.101 113.7)
XYZ	xyz(10.5853, 13.0878, 2.8881)
Luminance	0.1309 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646A19 #1F196A

analogous

#6A4719 #646A19 #3B6A19

triadic

#646A19 #19646A #6A1964

tetradic

#646A19 #196A47 #1F196A #6A193B

square

#646A19 #196A47 #1F196A #6A193B

split-complementary

#646A19 #193B6A #47196A

monochromatic

#171906 #35380D #646A19 #939C25 #C1CD30

Accessibility & contrast

On white

5.80

#646A19 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#646A19 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646A19

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646A19	#FFFFFF	#000000	##FFFFFF
##646A19	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#726509

Deuteranopia (green-blind)

#726620

Tritanopia (blue-blind)

#6B635A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #646a19;
/* rgb */ color: rgb(100, 106, 25);
/* oklch */ color: oklch(50.3% 0.101 113.7);

Tailwind

colors: {
  custom: {
    50: '#93945c',
    500: '#646a19',
    950: '#000000',
  },
}

SCSS

$custom: #646a19;
$custom-light: #93945c;
$custom-dark: #000000;

JSON

{
  "hex": "#646a19",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 25
  },
  "hsl": {
    "h": 64.444,
    "s": 61.832,
    "l": 25.686
  },
  "oklch": {
    "l": 0.50316,
    "c": 0.10129,
    "h": 113.7
  },
  "luminance": 0.13088
}

Semantic roles & 50–950 ramp

primary

#646A19

secondary

#463FA0

accent

#43E54F

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #646A19

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

Preview Lab → · Contrast checker → · Palette generator →