#99EF54#99EF54

#99EF54 is a very light, highly saturated yellow-green. Relative luminance 0.691; OKLCH L 86.7% C 0.205 H 133.8°. Best body text is #000000 at 14.83:1 contrast (WCAG AA passes).

Color values

HEX	#99EF54
RGB	rgb(153, 239, 84)
HSL	hsl(93, 83%, 63%)
HSV	hsv(93, 65%, 94%)
CMYK	cmyk(36%, 0%, 64.9%, 6.3%)
CIE-LAB	lab(86.58, -50.70, 64.45)
CIE-LCH	lch(86.58, 82.00, 128.19°)
OKLab	oklab(86.71% -0.1417 0.1477)
OKLCH	oklch(86.71% 0.205 133.8)
XYZ	xyz(45.6028, 69.1434, 19.3290)
Luminance	0.6915 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99EF54 #AA54EF

analogous

#E7EF54 #99EF54 #54EF5C

triadic

#99EF54 #5499EF #EF5499

tetradic

#99EF54 #54E7EF #AA54EF #EF5C54

square

#99EF54 #54E7EF #AA54EF #EF5C54

split-complementary

#99EF54 #5C54EF #EF54E7

monochromatic

#5BB711 #78EA1C #99EF54 #BAF48C #DCF9C4

Accessibility & contrast

On white

1.42

#99EF54 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.83

#99EF54 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99EF54

14.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99EF54	#FFFFFF	#000000	##000000
##99EF54	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)

#F8DD40

Deuteranopia (green-blind)

#ECD661

Tritanopia (blue-blind)

#99E6CF

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #99ef54;
/* rgb */ color: rgb(153, 239, 84);
/* oklch */ color: oklch(86.7% 0.205 133.8);

Tailwind

colors: {
  custom: {
    50: '#bcf58b',
    500: '#99ef54',
    950: '#000000',
  },
}

SCSS

$custom: #99ef54;
$custom-light: #bcf58b;
$custom-dark: #000000;

JSON

{
  "hex": "#99ef54",
  "rgb": {
    "r": 153,
    "g": 239,
    "b": 84
  },
  "hsl": {
    "h": 93.29,
    "s": 82.888,
    "l": 63.333
  },
  "oklch": {
    "l": 0.86714,
    "c": 0.20467,
    "h": 133.8
  },
  "luminance": 0.69145
}

Semantic roles & 50–950 ramp

primary

#99EF54

secondary

#7B31B7

accent

#06DF7F

background

#FDFFFC

surface

#F9FEF4

border

#D2D6CE

text

#12170C

muted

#82857F

Preview Lab

Preview with #99EF54

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

Preview Lab → · Contrast checker → · Palette generator →