#99DD4B#99DD4B

#99DD4B is a very light, vivid yellow-green. Relative luminance 0.590; OKLCH L 82.4% C 0.188 H 131.0°. Best body text is #000000 at 12.80:1 contrast (WCAG AA passes).

Color values

HEX	#99DD4B
RGB	rgb(153, 221, 75)
HSL	hsl(88, 68%, 58%)
HSV	hsv(88, 66%, 87%)
CMYK	cmyk(30.8%, 0%, 66.1%, 13.3%)
CIE-LAB	lab(81.29, -43.83, 62.37)
CIE-LCH	lch(81.29, 76.23, 125.10°)
OKLab	oklab(82.38% -0.1236 0.1422)
OKLCH	oklch(82.38% 0.188 131)
XYZ	xyz(40.2629, 58.9919, 15.9205)
Luminance	0.5899 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99DD4B #8F4BDD

analogous

#DDD84B #99DD4B #50DD4B

triadic

#99DD4B #4B99DD #DD4B99

tetradic

#99DD4B #4BDDD8 #8F4BDD #DD4B50

square

#99DD4B #4BDDD8 #8F4BDD #DD4B50

split-complementary

#99DD4B #4B50DD #D84BDD

monochromatic

#5B921C #7BC525 #99DD4B #B6E77E #D3F0B2

Accessibility & contrast

On white

1.64

#99DD4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.80

#99DD4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99DD4B

12.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99DD4B	#FFFFFF	#000000	##000000
##99DD4B	1.00	1.64	12.80	12.80
#FFFFFF	1.64	1.00	21.00	21.00
#000000	12.80	21.00	1.00	1.00
##000000	12.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E6CD37

Deuteranopia (green-blind)

#DDC857

Tritanopia (blue-blind)

#9CD4BF

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #99dd4b;
/* rgb */ color: rgb(153, 221, 75);
/* oklch */ color: oklch(82.4% 0.188 131.0);

Tailwind

colors: {
  custom: {
    50: '#bbe884',
    500: '#99dd4b',
    950: '#000000',
  },
}

SCSS

$custom: #99dd4b;
$custom-light: #bbe884;
$custom-dark: #000000;

JSON

{
  "hex": "#99dd4b",
  "rgb": {
    "r": 153,
    "g": 221,
    "b": 75
  },
  "hsl": {
    "h": 87.945,
    "s": 68.224,
    "l": 58.039
  },
  "oklch": {
    "l": 0.82383,
    "c": 0.18841,
    "h": 131
  },
  "luminance": 0.58993
}

Semantic roles & 50–950 ramp

primary

#99DD4B

secondary

#633597

accent

#3DEB8E

background

#FDFEFB

surface

#F9FCF2

border

#D2D5CC

text

#12160B

muted

#82847E

Preview Lab

Preview with #99DD4B

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

Preview Lab → · Contrast checker → · Palette generator →