#646F1B#646F1B

#646F1B is a mid, moderate yellow. Relative luminance 0.142; OKLCH L 51.6% C 0.106 H 116.8°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#646F1B
RGB	rgb(100, 111, 27)
HSL	hsl(68, 61%, 27%)
HSV	hsv(68, 76%, 44%)
CMYK	cmyk(9.9%, 0%, 75.7%, 56.5%)
CIE-LAB	lab(44.46, -15.92, 42.63)
CIE-LCH	lch(44.46, 45.50, 110.47°)
OKLab	oklab(51.57% -0.0478 0.0947)
OKLCH	oklch(51.57% 0.106 116.8)
XYZ	xyz(11.1381, 14.1575, 3.1826)
Luminance	0.1416 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646F1B #261B6F

analogous

#6F501B #646F1B #3A6F1B

triadic

#646F1B #1B646F #6F1B64

tetradic

#646F1B #1B6F50 #261B6F #6F1B3A

square

#646F1B #1B6F50 #261B6F #6F1B3A

split-complementary

#646F1B #1B3A6F #501B6F

monochromatic

#161906 #383E0F #646F1B #90A027 #BACE36

Accessibility & contrast

On white

5.48

#646F1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#646F1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646F1B

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646F1B	#FFFFFF	#000000	##FFFFFF
##646F1B	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)

#77690B

Deuteranopia (green-blind)

#766A22

Tritanopia (blue-blind)

#6B685F

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #646f1b;
/* rgb */ color: rgb(100, 111, 27);
/* oklch */ color: oklch(51.6% 0.106 116.8);

Tailwind

colors: {
  custom: {
    50: '#93985e',
    500: '#646f1b',
    950: '#000000',
  },
}

SCSS

$custom: #646f1b;
$custom-light: #93985e;
$custom-dark: #000000;

JSON

{
  "hex": "#646f1b",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 27
  },
  "hsl": {
    "h": 67.857,
    "s": 60.87,
    "l": 27.059
  },
  "oklch": {
    "l": 0.51574,
    "c": 0.10605,
    "h": 116.8
  },
  "luminance": 0.14157
}

Semantic roles & 50–950 ramp

primary

#646F1B

secondary

#4F42A4

accent

#44E459

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #646F1B

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

Preview Lab → · Contrast checker → · Palette generator →