#99EC53#99EC53

#99EC53 is a very light, highly saturated yellow-green. Relative luminance 0.674; OKLCH L 86.0% C 0.202 H 133.4°. Best body text is #000000 at 14.48:1 contrast (WCAG AA passes).

Color values

HEX	#99EC53
RGB	rgb(153, 236, 83)
HSL	hsl(93, 80%, 63%)
HSV	hsv(93, 65%, 93%)
CMYK	cmyk(35.2%, 0%, 64.8%, 7.5%)
CIE-LAB	lab(85.70, -49.55, 63.91)
CIE-LCH	lch(85.70, 80.86, 127.79°)
OKLab	oklab(86% -0.1386 0.1465)
OKLCH	oklch(86% 0.202 133.4)
XYZ	xyz(44.6929, 67.3858, 18.8339)
Luminance	0.6739 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99EC53 #A653EC

analogous

#E6EC53 #99EC53 #53EC59

triadic

#99EC53 #5399EC #EC5399

tetradic

#99EC53 #53E6EC #A653EC #EC5953

square

#99EC53 #53E6EC #A653EC #EC5953

split-complementary

#99EC53 #5953EC #EC53E6

monochromatic

#5CB114 #78E61C #99EC53 #BAF28A #DAF8C1

Accessibility & contrast

On white

1.45

#99EC53 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.48

#99EC53 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99EC53

14.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99EC53	#FFFFFF	#000000	##000000
##99EC53	1.00	1.45	14.48	14.48
#FFFFFF	1.45	1.00	21.00	21.00
#000000	14.48	21.00	1.00	1.00
##000000	14.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F5DA3F

Deuteranopia (green-blind)

#EAD460

Tritanopia (blue-blind)

#99E3CD

Achromatopsia (no color)

#D6D6D6

Design tokens & code

CSS

--color: #99ec53;
/* rgb */ color: rgb(153, 236, 83);
/* oklch */ color: oklch(86.0% 0.202 133.4);

Tailwind

colors: {
  custom: {
    50: '#bcf28a',
    500: '#99ec53',
    950: '#000000',
  },
}

SCSS

$custom: #99ec53;
$custom-light: #bcf28a;
$custom-dark: #000000;

JSON

{
  "hex": "#99ec53",
  "rgb": {
    "r": 153,
    "g": 236,
    "b": 83
  },
  "hsl": {
    "h": 92.549,
    "s": 80.105,
    "l": 62.549
  },
  "oklch": {
    "l": 0.85997,
    "c": 0.20162,
    "h": 133.4
  },
  "luminance": 0.67388
}

Semantic roles & 50–950 ramp

primary

#99EC53

secondary

#7732B1

accent

#09DC7C

background

#FDFFFC

surface

#F9FEF4

border

#D2D6CE

text

#12170C

muted

#82857F

Preview Lab

Preview with #99EC53

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

Preview Lab → · Contrast checker → · Palette generator →