#40AA1B#40AA1B

#40AA1B is a light, vivid green. Relative luminance 0.299; OKLCH L 65.1% C 0.197 H 139.6°. Best body text is #000000 at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#40AA1B
RGB	rgb(64, 170, 27)
HSL	hsl(104, 73%, 39%)
HSV	hsv(104, 84%, 67%)
CMYK	cmyk(62.4%, 0%, 84.1%, 33.3%)
CIE-LAB	lab(61.58, -54.44, 57.94)
CIE-LCH	lch(61.58, 79.51, 133.21°)
OKLab	oklab(65.09% -0.1498 0.1276)
OKLCH	oklch(65.09% 0.197 139.6)
XYZ	xyz(16.6862, 29.9170, 5.9319)
Luminance	0.2992 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40AA1B #851BAA

analogous

#87AA1B #40AA1B #1BAA3E

triadic

#40AA1B #1B40AA #AA1B40

tetradic

#40AA1B #1B87AA #851BAA #AA3E1B

square

#40AA1B #1B87AA #851BAA #AA3E1B

split-complementary

#40AA1B #3E1BAA #AA1B87

monochromatic

#18400A #2C7513 #40AA1B #55DC26 #7EE55B

Accessibility & contrast

On white

3.01

#40AA1B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.98

#40AA1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #40AA1B

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40AA1B	#FFFFFF	#000000	##000000
##40AA1B	1.00	3.01	6.98	6.98
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.98	21.00	1.00	1.00
##000000	6.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AF9A00

Deuteranopia (green-blind)

#A2912E

Tritanopia (blue-blind)

#32A491

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #40aa1b;
/* rgb */ color: rgb(64, 170, 27);
/* oklch */ color: oklch(65.1% 0.197 139.6);

Tailwind

colors: {
  custom: {
    50: '#83c466',
    500: '#40aa1b',
    950: '#000000',
  },
}

SCSS

$custom: #40aa1b;
$custom-light: #83c466;
$custom-dark: #000000;

JSON

{
  "hex": "#40aa1b",
  "rgb": {
    "r": 64,
    "g": 170,
    "b": 27
  },
  "hsl": {
    "h": 104.476,
    "s": 72.589,
    "l": 38.627
  },
  "oklch": {
    "l": 0.65093,
    "c": 0.19675,
    "h": 139.6
  },
  "luminance": 0.29919
}

Semantic roles & 50–950 ramp

primary

#40AA1B

secondary

#AC58C9

accent

#39EFC0

background

#F8FCF6

surface

#F0F8EB

border

#CBD1C6

text

#0C1306

muted

#7D827A

Preview Lab

Preview with #40AA1B

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

Preview Lab → · Contrast checker → · Palette generator →