#648B40#648B40

#648B40 is a mid, moderate yellow-green. Relative luminance 0.215; OKLCH L 59.0% C 0.113 H 131.8°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#648B40
RGB	rgb(100, 139, 64)
HSL	hsl(91, 37%, 40%)
HSV	hsv(91, 54%, 55%)
CMYK	cmyk(28.1%, 0%, 54%, 45.5%)
CIE-LAB	lab(53.54, -27.08, 35.45)
CIE-LCH	lch(53.54, 44.61, 127.38°)
OKLab	oklab(59.02% -0.0752 0.0843)
OKLCH	oklch(59.02% 0.113 131.8)
XYZ	xyz(15.4133, 21.5443, 8.1959)
Luminance	0.2155 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648B40 #67408B

analogous

#8A8B40 #648B40 #408B41

triadic

#648B40 #40648B #8B4064

tetradic

#648B40 #408A8B #67408B #8B4140

square

#648B40 #408A8B #67408B #8B4140

split-complementary

#648B40 #41408B #8B408A

monochromatic

#283719 #46612D #648B40 #82B257 #A1C581

Accessibility & contrast

On white

3.96

#648B40 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#648B40 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648B40

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648B40	#FFFFFF	#000000	##000000
##648B40	1.00	3.96	5.31	5.31
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#908239

Deuteranopia (green-blind)

#8B7F45

Tritanopia (blue-blind)

#65867A

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #648b40;
/* rgb */ color: rgb(100, 139, 64);
/* oklch */ color: oklch(59.0% 0.113 131.8);

Tailwind

colors: {
  custom: {
    50: '#92ad77',
    500: '#648b40',
    950: '#000000',
  },
}

SCSS

$custom: #648b40;
$custom-light: #92ad77;
$custom-dark: #000000;

JSON

{
  "hex": "#648b40",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 64
  },
  "hsl": {
    "h": 91.2,
    "s": 36.946,
    "l": 39.804
  },
  "oklch": {
    "l": 0.59018,
    "c": 0.11296,
    "h": 131.8
  },
  "luminance": 0.21545
}

Semantic roles & 50–950 ramp

primary

#648B40

secondary

#9578AF

accent

#5BCD96

background

#F9FAF7

surface

#F1F4ED

border

#CBCEC8

text

#0D1009

muted

#7E7F7B

Preview Lab

Preview with #648B40

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

Preview Lab → · Contrast checker → · Palette generator →