#99E351#99E351

#99E351 is a very light, vivid yellow-green. Relative luminance 0.623; OKLCH L 83.9% C 0.192 H 132.2°. Best body text is #000000 at 13.46:1 contrast (WCAG AA passes).

Color values

HEX	#99E351
RGB	rgb(153, 227, 81)
HSL	hsl(90, 72%, 60%)
HSV	hsv(90, 64%, 89%)
CMYK	cmyk(32.6%, 0%, 64.3%, 11%)
CIE-LAB	lab(83.07, -45.93, 61.89)
CIE-LCH	lch(83.07, 77.07, 126.58°)
OKLab	oklab(83.85% -0.1289 0.142)
OKLCH	oklch(83.85% 0.192 132.2)
XYZ	xyz(42.0906, 62.3030, 17.5910)
Luminance	0.6230 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99E351 #9B51E3

analogous

#E2E351 #99E351 #51E352

triadic

#99E351 #5199E3 #E35199

tetradic

#99E351 #51E2E3 #9B51E3 #E35251

square

#99E351 #51E2E3 #9B51E3 #E35251

split-complementary

#99E351 #5251E3 #E351E2

monochromatic

#5CA01A #7AD522 #99E351 #B8EB86 #D7F4BA

Accessibility & contrast

On white

1.56

#99E351 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.46

#99E351 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99E351

13.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99E351	#FFFFFF	#000000	##000000
##99E351	1.00	1.56	13.46	13.46
#FFFFFF	1.56	1.00	21.00	21.00
#000000	13.46	21.00	1.00	1.00
##000000	13.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ECD33E

Deuteranopia (green-blind)

#E2CD5D

Tritanopia (blue-blind)

#9BDAC5

Achromatopsia (no color)

#CFCFCF

Design tokens & code

CSS

--color: #99e351;
/* rgb */ color: rgb(153, 227, 81);
/* oklch */ color: oklch(83.9% 0.192 132.2);

Tailwind

colors: {
  custom: {
    50: '#bbec88',
    500: '#99e351',
    950: '#000000',
  },
}

SCSS

$custom: #99e351;
$custom-light: #bbec88;
$custom-dark: #000000;

JSON

{
  "hex": "#99e351",
  "rgb": {
    "r": 153,
    "g": 227,
    "b": 81
  },
  "hsl": {
    "h": 90.411,
    "s": 72.277,
    "l": 60.392
  },
  "oklch": {
    "l": 0.83853,
    "c": 0.19172,
    "h": 132.2
  },
  "luminance": 0.62305
}

Semantic roles & 50–950 ramp

primary

#99E351

secondary

#6D35A3

accent

#11D474

background

#FDFEFC

surface

#F9FDF4

border

#D2D5CE

text

#12160C

muted

#82847F

Preview Lab

Preview with #99E351

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

Preview Lab → · Contrast checker → · Palette generator →