#99E040#99E040

#99E040 is a very light, vivid yellow-green. Relative luminance 0.605; OKLCH L 83.0% C 0.199 H 130.7°. Best body text is #000000 at 13.09:1 contrast (WCAG AA passes).

Color values

HEX	#99E040
RGB	rgb(153, 224, 64)
HSL	hsl(87, 72%, 56%)
HSV	hsv(87, 71%, 88%)
CMYK	cmyk(31.7%, 0%, 71.4%, 12.2%)
CIE-LAB	lab(82.08, -45.85, 67.28)
CIE-LCH	lch(82.08, 81.42, 124.28°)
OKLab	oklab(83.01% -0.1299 0.151)
OKLCH	oklch(83.01% 0.199 130.7)
XYZ	xyz(40.7176, 60.4524, 14.3727)
Luminance	0.6045 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99E040 #8740E0

analogous

#E0D740 #99E040 #49E040

triadic

#99E040 #4099E0 #E04099

tetradic

#99E040 #40E0D7 #8740E0 #E04049

square

#99E040 #40E0D7 #8740E0 #E04049

split-complementary

#99E040 #4049E0 #D740E0

monochromatic

#5A8E17 #7BC320 #99E040 #B5E975 #D1F1A9

Accessibility & contrast

On white

1.60

#99E040 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.09

#99E040 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99E040

13.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99E040	#FFFFFF	#000000	##000000
##99E040	1.00	1.60	13.09	13.09
#FFFFFF	1.60	1.00	21.00	21.00
#000000	13.09	21.00	1.00	1.00
##000000	13.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EAD023

Deuteranopia (green-blind)

#E0CA4F

Tritanopia (blue-blind)

#9CD7C1

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #99e040;
/* rgb */ color: rgb(153, 224, 64);
/* oklch */ color: oklch(83.0% 0.199 130.7);

Tailwind

colors: {
  custom: {
    50: '#bcea7f',
    500: '#99e040',
    950: '#000000',
  },
}

SCSS

$custom: #99e040;
$custom-light: #bcea7f;
$custom-dark: #000000;

JSON

{
  "hex": "#99e040",
  "rgb": {
    "r": 153,
    "g": 224,
    "b": 64
  },
  "hsl": {
    "h": 86.625,
    "s": 72.072,
    "l": 56.471
  },
  "oklch": {
    "l": 0.83007,
    "c": 0.19923,
    "h": 130.7
  },
  "luminance": 0.60454
}

Semantic roles & 50–950 ramp

primary

#99E040

secondary

#5D3194

accent

#39EF8A

background

#FDFEFB

surface

#F9FDF2

border

#D2D5CC

text

#12160B

muted

#82847E

Preview Lab

Preview with #99E040

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

Preview Lab → · Contrast checker → · Palette generator →