#647D21#647D21

#647D21 is a mid, moderate yellow-green. Relative luminance 0.175; OKLCH L 55.1% C 0.120 H 123.7°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#647D21
RGB	rgb(100, 125, 33)
HSL	hsl(76, 58%, 31%)
HSV	hsv(76, 74%, 49%)
CMYK	cmyk(20%, 0%, 73.6%, 51%)
CIE-LAB	lab(48.87, -22.89, 44.61)
CIE-LCH	lch(48.87, 50.14, 117.16°)
OKLab	oklab(55.14% -0.0665 0.0999)
OKLCH	oklch(55.14% 0.12 123.7)
XYZ	xyz(12.8638, 17.4863, 4.1360)
Luminance	0.1749 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647D21 #3A217D

analogous

#7D6821 #647D21 #367D21

triadic

#647D21 #21647D #7D2164

tetradic

#647D21 #217D68 #3A217D #7D2136

square

#647D21 #217D68 #3A217D #7D2136

split-complementary

#647D21 #21367D #68217D

monochromatic

#171C07 #3D4D14 #647D21 #8BAD2E #ABCF49

Accessibility & contrast

On white

4.67

#647D21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#647D21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #647D21

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647D21	#FFFFFF	#000000	##FFFFFF
##647D21	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#847511

Deuteranopia (green-blind)

#817429

Tritanopia (blue-blind)

#69776B

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #647d21;
/* rgb */ color: rgb(100, 125, 33);
/* oklch */ color: oklch(55.1% 0.120 123.7);

Tailwind

colors: {
  custom: {
    50: '#93a263',
    500: '#647d21',
    950: '#000000',
  },
}

SCSS

$custom: #647d21;
$custom-light: #93a263;
$custom-dark: #000000;

JSON

{
  "hex": "#647d21",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 33
  },
  "hsl": {
    "h": 76.304,
    "s": 58.228,
    "l": 30.98
  },
  "oklch": {
    "l": 0.5514,
    "c": 0.11998,
    "h": 123.7
  },
  "luminance": 0.17486
}

Semantic roles & 50–950 ramp

primary

#647D21

secondary

#664AB0

accent

#46E170

background

#F9FAF6

surface

#F2F3EB

border

#CCCDC6

text

#0D0F05

muted

#7E7F7A

Preview Lab

Preview with #647D21

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

Preview Lab → · Contrast checker → · Palette generator →