#647F1B#647F1B

#647F1B is a mid, vivid yellow-green. Relative luminance 0.180; OKLCH L 55.6% C 0.126 H 124.0°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#647F1B
RGB	rgb(100, 127, 27)
HSL	hsl(76, 65%, 30%)
HSV	hsv(76, 79%, 50%)
CMYK	cmyk(21.3%, 0%, 78.7%, 50.2%)
CIE-LAB	lab(49.46, -24.24, 47.40)
CIE-LCH	lch(49.46, 53.24, 117.09°)
OKLab	oklab(55.6% -0.0707 0.1047)
OKLCH	oklch(55.6% 0.126 124)
XYZ	xyz(13.0429, 17.9671, 3.8175)
Luminance	0.1797 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647F1B #361B7F

analogous

#7F681B #647F1B #327F1B

triadic

#647F1B #1B647F #7F1B64

tetradic

#647F1B #1B7F68 #361B7F #7F1B32

square

#647F1B #1B7F68 #361B7F #7F1B32

split-complementary

#647F1B #1B327F #681B7F

monochromatic

#151A06 #3C4D10 #647F1B #8CB126 #ADD63E

Accessibility & contrast

On white

4.57

#647F1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#647F1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647F1B

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647F1B	#FFFFFF	#000000	##000000
##647F1B	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#877603

Deuteranopia (green-blind)

#837525

Tritanopia (blue-blind)

#69786C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #647f1b;
/* rgb */ color: rgb(100, 127, 27);
/* oklch */ color: oklch(55.6% 0.126 124.0);

Tailwind

colors: {
  custom: {
    50: '#93a460',
    500: '#647f1b',
    950: '#000000',
  },
}

SCSS

$custom: #647f1b;
$custom-light: #93a460;
$custom-dark: #000000;

JSON

{
  "hex": "#647f1b",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 27
  },
  "hsl": {
    "h": 76.2,
    "s": 64.935,
    "l": 30.196
  },
  "oklch": {
    "l": 0.55604,
    "c": 0.12634,
    "h": 124
  },
  "luminance": 0.17967
}

Semantic roles & 50–950 ramp

primary

#647F1B

secondary

#6143B3

accent

#40E86D

background

#F9FAF5

surface

#F2F4EA

border

#CCCEC6

text

#0D0F05

muted

#7E7F79

Preview Lab

Preview with #647F1B

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

Preview Lab → · Contrast checker → · Palette generator →