#647F1F#647F1F

#647F1F is a mid, vivid yellow-green. Relative luminance 0.180; OKLCH L 55.6% C 0.124 H 124.3°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#647F1F
RGB	rgb(100, 127, 31)
HSL	hsl(77, 61%, 31%)
HSV	hsv(77, 76%, 50%)
CMYK	cmyk(21.3%, 0%, 75.6%, 50.2%)
CIE-LAB	lab(49.48, -24.02, 45.98)
CIE-LCH	lch(49.48, 51.88, 117.58°)
OKLab	oklab(55.63% -0.0698 0.1024)
OKLCH	oklch(55.63% 0.124 124.3)
XYZ	xyz(13.0924, 17.9869, 4.0781)
Luminance	0.1799 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647F1F #3A1F7F

analogous

#7F6A1F #647F1F #347F1F

triadic

#647F1F #1F647F #7F1F64

tetradic

#647F1F #1F7F6A #3A1F7F #7F1F34

square

#647F1F #1F7F6A #3A1F7F #7F1F34

split-complementary

#647F1F #1F347F #6A1F7F

monochromatic

#171D07 #3D4E13 #647F1F #8BB02B #ABD246

Accessibility & contrast

On white

4.57

#647F1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#647F1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647F1F

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647F1F	#FFFFFF	#000000	##000000
##647F1F	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#86770C

Deuteranopia (green-blind)

#837528

Tritanopia (blue-blind)

#69796D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #647f1f;
/* rgb */ color: rgb(100, 127, 31);
/* oklch */ color: oklch(55.6% 0.124 124.3);

Tailwind

colors: {
  custom: {
    50: '#93a462',
    500: '#647f1f',
    950: '#000000',
  },
}

SCSS

$custom: #647f1f;
$custom-light: #93a462;
$custom-dark: #000000;

JSON

{
  "hex": "#647f1f",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 31
  },
  "hsl": {
    "h": 76.875,
    "s": 60.759,
    "l": 30.98
  },
  "oklch": {
    "l": 0.55632,
    "c": 0.12392,
    "h": 124.3
  },
  "luminance": 0.17987
}

Semantic roles & 50–950 ramp

primary

#647F1F

secondary

#6648B2

accent

#44E471

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0D0F05

muted

#7E7F7A

Preview Lab

Preview with #647F1F

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

Preview Lab → · Contrast checker → · Palette generator →