#99EF53#99EF53

#99EF53 is a very light, highly saturated yellow-green. Relative luminance 0.691; OKLCH L 86.7% C 0.205 H 133.7°. Best body text is #000000 at 14.83:1 contrast (WCAG AA passes).

Color values

HEX	#99EF53
RGB	rgb(153, 239, 83)
HSL	hsl(93, 83%, 63%)
HSV	hsv(93, 65%, 94%)
CMYK	cmyk(36%, 0%, 65.3%, 6.3%)
CIE-LAB	lab(86.57, -50.78, 64.84)
CIE-LCH	lch(86.57, 82.36, 128.07°)
OKLab	oklab(86.71% -0.1419 0.1484)
OKLCH	oklch(86.71% 0.205 133.7)
XYZ	xyz(45.5639, 69.1278, 19.1242)
Luminance	0.6913 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99EF53 #A953EF

analogous

#E7EF53 #99EF53 #53EF5B

triadic

#99EF53 #5399EF #EF5399

tetradic

#99EF53 #53E7EF #A953EF #EF5B53

square

#99EF53 #53E7EF #A953EF #EF5B53

split-complementary

#99EF53 #5B53EF #EF53E7

monochromatic

#5BB711 #78EA1B #99EF53 #BAF48B #DBF9C3

Accessibility & contrast

On white

1.42

#99EF53 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.83

#99EF53 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99EF53

14.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99EF53	#FFFFFF	#000000	##000000
##99EF53	1.00	1.42	14.83	14.83
#FFFFFF	1.42	1.00	21.00	21.00
#000000	14.83	21.00	1.00	1.00
##000000	14.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F8DD3E

Deuteranopia (green-blind)

#ECD660

Tritanopia (blue-blind)

#99E6CF

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #99ef53;
/* rgb */ color: rgb(153, 239, 83);
/* oklch */ color: oklch(86.7% 0.205 133.7);

Tailwind

colors: {
  custom: {
    50: '#bcf58a',
    500: '#99ef53',
    950: '#000000',
  },
}

SCSS

$custom: #99ef53;
$custom-light: #bcf58a;
$custom-dark: #000000;

JSON

{
  "hex": "#99ef53",
  "rgb": {
    "r": 153,
    "g": 239,
    "b": 83
  },
  "hsl": {
    "h": 93.077,
    "s": 82.979,
    "l": 63.137
  },
  "oklch": {
    "l": 0.86706,
    "c": 0.20537,
    "h": 133.7
  },
  "luminance": 0.6913
}

Semantic roles & 50–950 ramp

primary

#99EF53

secondary

#7A30B6

accent

#06DF7E

background

#FDFFFC

surface

#F9FEF4

border

#D2D6CE

text

#12170C

muted

#82857F

Preview Lab

Preview with #99EF53

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

Preview Lab → · Contrast checker → · Palette generator →