Slime Green#99CC04

#99CC04 is a light, vivid yellow-green. Relative luminance 0.500; OKLCH L 78.0% C 0.197 H 125.7°. Best body text is #000000 at 10.99:1 contrast (WCAG AA passes).

Slime Green — editorial page

Color values

HEX	#99CC04
RGB	rgb(153, 204, 4)
HSL	hsl(75, 96%, 41%)
HSV	hsv(75, 98%, 80%)
CMYK	cmyk(25%, 0%, 98%, 20%)
CIE-LAB	lab(76.05, -39.23, 75.19)
CIE-LCH	lch(76.05, 84.81, 117.55°)
OKLab	oklab(78.03% -0.1151 0.1601)
OKLCH	oklch(78.03% 0.197 125.7)
XYZ	xyz(34.7520, 49.9662, 7.9284)
Luminance	0.4997 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99CC04 #3704CC

analogous

#CC9B04 #99CC04 #35CC04

triadic

#99CC04 #0499CC #CC0499

tetradic

#99CC04 #04CC9B #3704CC #CC0435

square

#99CC04 #04CC9B #3704CC #CC0435

split-complementary

#99CC04 #0435CC #9B04CC

monochromatic

#3F5402 #6C9003 #99CC04 #BFFA13 #D0FC4F

Accessibility & contrast

On white

1.91

#99CC04 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.99

#99CC04 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99CC04

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99CC04	#FFFFFF	#000000	##000000
##99CC04	1.00	1.91	10.99	10.99
#FFFFFF	1.91	1.00	21.00	21.00
#000000	10.99	21.00	1.00	1.00
##000000	10.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8BD00

Deuteranopia (green-blind)

#D1BB2A

Tritanopia (blue-blind)

#A0C2AD

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #99cc04;
/* rgb */ color: rgb(153, 204, 4);
/* oklch */ color: oklch(78.0% 0.197 125.7);

Tailwind

colors: {
  custom: {
    50: '#bcdb68',
    500: '#99cc04',
    950: '#000000',
  },
}

SCSS

$custom: #99cc04;
$custom-light: #bcdb68;
$custom-dark: #000000;

JSON

{
  "hex": "#99cc04",
  "rgb": {
    "r": 153,
    "g": 204,
    "b": 4
  },
  "hsl": {
    "h": 75.3,
    "s": 96.154,
    "l": 40.784
  },
  "oklch": {
    "l": 0.78032,
    "c": 0.19718,
    "h": 125.7
  },
  "luminance": 0.49967
}

Semantic roles & 50–950 ramp

primary

#99CC04

secondary

#734FDD

accent

#29FF5F

background

#FCFDF6

surface

#F8FBEC

border

#D1D4C7

text

#131507

muted

#82837A

Preview Lab

Preview with #99CC04

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

Preview Lab → · Contrast checker → · Palette generator →