#99E54B#99E54B

#99E54B is a very light, vivid yellow-green. Relative luminance 0.633; OKLCH L 84.3% C 0.198 H 132.0°. Best body text is #000000 at 13.66:1 contrast (WCAG AA passes).

Color values

HEX	#99E54B
RGB	rgb(153, 229, 75)
HSL	hsl(90, 75%, 60%)
HSV	hsv(90, 67%, 90%)
CMYK	cmyk(33.2%, 0%, 67.2%, 10.2%)
CIE-LAB	lab(83.61, -47.23, 64.81)
CIE-LCH	lch(83.61, 80.19, 126.08°)
OKLab	oklab(84.27% -0.1329 0.1474)
OKLCH	oklch(84.27% 0.198 132)
XYZ	xyz(42.4257, 63.3173, 16.6414)
Luminance	0.6332 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99E54B #974BE5

analogous

#E5E44B #99E54B #4CE54B

triadic

#99E54B #4B99E5 #E54B99

tetradic

#99E54B #4BE5E4 #974BE5 #E54B4C

square

#99E54B #4BE5E4 #974BE5 #E54B4C

split-complementary

#99E54B #4B4CE5 #E44BE5

monochromatic

#5C9F17 #7BD41F #99E54B #B7ED80 #D6F4B6

Accessibility & contrast

On white

1.54

#99E54B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.66

#99E54B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99E54B

13.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99E54B	#FFFFFF	#000000	##000000
##99E54B	1.00	1.54	13.66	13.66
#FFFFFF	1.54	1.00	21.00	21.00
#000000	13.66	21.00	1.00	1.00
##000000	13.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EED435

Deuteranopia (green-blind)

#E4CE58

Tritanopia (blue-blind)

#9BDCC6

Achromatopsia (no color)

#D0D0D0

Design tokens & code

CSS

--color: #99e54b;
/* rgb */ color: rgb(153, 229, 75);
/* oklch */ color: oklch(84.3% 0.198 132.0);

Tailwind

colors: {
  custom: {
    50: '#bced85',
    500: '#99e54b',
    950: '#000000',
  },
}

SCSS

$custom: #99e54b;
$custom-light: #bced85;
$custom-dark: #000000;

JSON

{
  "hex": "#99e54b",
  "rgb": {
    "r": 153,
    "g": 229,
    "b": 75
  },
  "hsl": {
    "h": 89.61,
    "s": 74.757,
    "l": 59.608
  },
  "oklch": {
    "l": 0.84274,
    "c": 0.1984,
    "h": 132
  },
  "luminance": 0.63319
}

Semantic roles & 50–950 ramp

primary

#99E54B

secondary

#6933A2

accent

#36F193

background

#FDFFFC

surface

#F9FEF3

border

#D2D6CD

text

#12160C

muted

#82857F

Preview Lab

Preview with #99E54B

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

Preview Lab → · Contrast checker → · Palette generator →