#646F19#646F19

#646F19 is a mid, moderate yellow. Relative luminance 0.141; OKLCH L 51.6% C 0.107 H 116.8°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#646F19
RGB	rgb(100, 111, 25)
HSL	hsl(68, 63%, 27%)
HSV	hsv(68, 77%, 44%)
CMYK	cmyk(9.9%, 0%, 77.5%, 56.5%)
CIE-LAB	lab(44.45, -16.03, 43.38)
CIE-LCH	lch(44.45, 46.24, 110.28°)
OKLab	oklab(51.56% -0.0483 0.0959)
OKLCH	oklch(51.56% 0.107 116.8)
XYZ	xyz(11.1157, 14.1485, 3.0649)
Luminance	0.1415 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646F19 #24196F

analogous

#6F4F19 #646F19 #396F19

triadic

#646F19 #19646F #6F1964

tetradic

#646F19 #196F4F #24196F #6F1939

square

#646F19 #196F4F #24196F #6F1939

split-complementary

#646F19 #19396F #4F196F

monochromatic

#171906 #373D0E #646F19 #91A124 #BCD132

Accessibility & contrast

On white

5.48

#646F19 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#646F19 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646F19

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646F19	#FFFFFF	#000000	##FFFFFF
##646F19	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#776907

Deuteranopia (green-blind)

#766A20

Tritanopia (blue-blind)

#6B685F

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #646f19;
/* rgb */ color: rgb(100, 111, 25);
/* oklch */ color: oklch(51.6% 0.107 116.8);

Tailwind

colors: {
  custom: {
    50: '#93985d',
    500: '#646f19',
    950: '#000000',
  },
}

SCSS

$custom: #646f19;
$custom-light: #93985d;
$custom-dark: #000000;

JSON

{
  "hex": "#646f19",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 25
  },
  "hsl": {
    "h": 67.674,
    "s": 63.235,
    "l": 26.667
  },
  "oklch": {
    "l": 0.51559,
    "c": 0.10735,
    "h": 116.8
  },
  "luminance": 0.14148
}

Semantic roles & 50–950 ramp

primary

#646F19

secondary

#4C3FA4

accent

#42E657

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #646F19

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

Preview Lab → · Contrast checker → · Palette generator →