#646A1F#646A1F

#646A1F is a mid, moderate yellow. Relative luminance 0.131; OKLCH L 50.4% C 0.097 H 113.8°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#646A1F
RGB	rgb(100, 106, 31)
HSL	hsl(65, 55%, 27%)
HSV	hsv(65, 71%, 42%)
CMYK	cmyk(5.7%, 0%, 70.8%, 58.4%)
CIE-LAB	lab(42.94, -12.94, 39.47)
CIE-LCH	lch(42.94, 41.54, 108.15°)
OKLab	oklab(50.36% -0.0391 0.0887)
OKLCH	oklch(50.36% 0.097 113.8)
XYZ	xyz(10.6572, 13.1165, 3.2664)
Luminance	0.1312 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646A1F #251F6A

analogous

#6A4B1F #646A1F #3F6A1F

triadic

#646A1F #1F646A #6A1F64

tetradic

#646A1F #1F6A4B #251F6A #6A1F3F

square

#646A1F #1F6A4B #251F6A #6A1F3F

split-complementary

#646A1F #1F3F6A #4B1F6A

monochromatic

#161807 #373B11 #646A1F #91992D #BBC63D

Accessibility & contrast

On white

5.80

#646A1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#646A1F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646A1F

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646A1F	#FFFFFF	#000000	##FFFFFF
##646A1F	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)

#726514

Deuteranopia (green-blind)

#726624

Tritanopia (blue-blind)

#6B645B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #646a1f;
/* rgb */ color: rgb(100, 106, 31);
/* oklch */ color: oklch(50.4% 0.097 113.8);

Tailwind

colors: {
  custom: {
    50: '#939460',
    500: '#646a1f',
    950: '#000000',
  },
}

SCSS

$custom: #646a1f;
$custom-light: #939460;
$custom-dark: #000000;

JSON

{
  "hex": "#646a1f",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 31
  },
  "hsl": {
    "h": 64.8,
    "s": 54.745,
    "l": 26.863
  },
  "oklch": {
    "l": 0.50364,
    "c": 0.09698,
    "h": 113.8
  },
  "luminance": 0.13116
}

Semantic roles & 50–950 ramp

primary

#646A1F

secondary

#4E479E

accent

#4ADE56

background

#F9F9F5

surface

#F1F1EA

border

#CBCBC6

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #646A1F

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

Preview Lab → · Contrast checker → · Palette generator →