#99EC55#99EC55

#99EC55 is a very light, highly saturated yellow-green. Relative luminance 0.674; OKLCH L 86.0% C 0.200 H 133.6°. Best body text is #000000 at 14.48:1 contrast (WCAG AA passes).

Color values

HEX	#99EC55
RGB	rgb(153, 236, 85)
HSL	hsl(93, 80%, 63%)
HSV	hsv(93, 64%, 93%)
CMYK	cmyk(35.2%, 0%, 64%, 7.5%)
CIE-LAB	lab(85.71, -49.39, 63.13)
CIE-LCH	lch(85.71, 80.15, 128.04°)
OKLab	oklab(86.02% -0.138 0.145)
OKLCH	oklch(86.02% 0.2 133.6)
XYZ	xyz(44.7712, 67.4172, 19.2464)
Luminance	0.6742 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99EC55 #A855EC

analogous

#E5EC55 #99EC55 #55EC5C

triadic

#99EC55 #5599EC #EC5599

tetradic

#99EC55 #55E5EC #A855EC #EC5C55

square

#99EC55 #55E5EC #A855EC #EC5C55

split-complementary

#99EC55 #5C55EC #EC55E5

monochromatic

#5BB314 #78E61E #99EC55 #BAF28C #DBF8C3

Accessibility & contrast

On white

1.45

#99EC55 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.48

#99EC55 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99EC55

14.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99EC55	#FFFFFF	#000000	##000000
##99EC55	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)

#F5DB42

Deuteranopia (green-blind)

#E9D461

Tritanopia (blue-blind)

#99E3CD

Achromatopsia (no color)

#D6D6D6

Design tokens & code

CSS

--color: #99ec55;
/* rgb */ color: rgb(153, 236, 85);
/* oklch */ color: oklch(86.0% 0.200 133.6);

Tailwind

colors: {
  custom: {
    50: '#bcf28b',
    500: '#99ec55',
    950: '#000000',
  },
}

SCSS

$custom: #99ec55;
$custom-light: #bcf28b;
$custom-dark: #000000;

JSON

{
  "hex": "#99ec55",
  "rgb": {
    "r": 153,
    "g": 236,
    "b": 85
  },
  "hsl": {
    "h": 92.98,
    "s": 79.894,
    "l": 62.941
  },
  "oklch": {
    "l": 0.86015,
    "c": 0.20019,
    "h": 133.6
  },
  "luminance": 0.67419
}

Semantic roles & 50–950 ramp

primary

#99EC55

secondary

#7933B3

accent

#09DC7D

background

#FDFFFC

surface

#F9FEF4

border

#D2D6CE

text

#12170C

muted

#82857F

Preview Lab

Preview with #99EC55

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

Preview Lab → · Contrast checker → · Palette generator →