#99D951#99D951

#99D951 is a light, vivid yellow-green. Relative luminance 0.570; OKLCH L 81.5% C 0.179 H 130.9°. Best body text is #000000 at 12.40:1 contrast (WCAG AA passes).

Color values

HEX	#99D951
RGB	rgb(153, 217, 81)
HSL	hsl(88, 64%, 58%)
HSV	hsv(88, 63%, 85%)
CMYK	cmyk(29.5%, 0%, 62.7%, 14.9%)
CIE-LAB	lab(80.17, -41.62, 58.75)
CIE-LCH	lch(80.17, 72.00, 125.32°)
OKLab	oklab(81.49% -0.117 0.1353)
OKLCH	oklch(81.49% 0.179 130.9)
XYZ	xyz(39.4346, 56.9909, 16.7056)
Luminance	0.5699 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99D951 #9151D9

analogous

#D9D551 #99D951 #55D951

triadic

#99D951 #5199D9 #D95199

tetradic

#99D951 #51D9D5 #9151D9 #D95155

square

#99D951 #51D9D5 #9151D9 #D95155

split-complementary

#99D951 #5155D9 #D551D9

monochromatic

#5B901F #7BC22A #99D951 #B6E483 #D4EFB5

Accessibility & contrast

On white

1.69

#99D951 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.40

#99D951 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99D951

12.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99D951	#FFFFFF	#000000	##000000
##99D951	1.00	1.69	12.40	12.40
#FFFFFF	1.69	1.00	21.00	21.00
#000000	12.40	21.00	1.00	1.00
##000000	12.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2CA40

Deuteranopia (green-blind)

#D9C55B

Tritanopia (blue-blind)

#9CD0BD

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #99d951;
/* rgb */ color: rgb(153, 217, 81);
/* oklch */ color: oklch(81.5% 0.179 130.9);

Tailwind

colors: {
  custom: {
    50: '#bbe587',
    500: '#99d951',
    950: '#000000',
  },
}

SCSS

$custom: #99d951;
$custom-light: #bbe587;
$custom-dark: #000000;

JSON

{
  "hex": "#99d951",
  "rgb": {
    "r": 153,
    "g": 217,
    "b": 81
  },
  "hsl": {
    "h": 88.235,
    "s": 64.151,
    "l": 58.431
  },
  "oklch": {
    "l": 0.81494,
    "c": 0.17892,
    "h": 130.9
  },
  "luminance": 0.56992
}

Semantic roles & 50–950 ramp

primary

#99D951

secondary

#643995

accent

#41E78F

background

#FDFEFC

surface

#F9FCF4

border

#D2D5CE

text

#12150C

muted

#82847F

Preview Lab

Preview with #99D951

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

Preview Lab → · Contrast checker → · Palette generator →