#99EF63#99EF63

#99EF63 is a very light, vivid yellow-green. Relative luminance 0.694; OKLCH L 86.9% C 0.193 H 135.1°. Best body text is #000000 at 14.88:1 contrast (WCAG AA passes).

Color values

HEX	#99EF63
RGB	rgb(153, 239, 99)
HSL	hsl(97, 81%, 66%)
HSV	hsv(97, 59%, 94%)
CMYK	cmyk(36%, 0%, 58.6%, 6.3%)
CIE-LAB	lab(86.70, -49.40, 58.38)
CIE-LCH	lch(86.70, 76.48, 130.24°)
OKLab	oklab(86.86% -0.137 0.1364)
OKLCH	oklch(86.86% 0.193 135.1)
XYZ	xyz(46.2545, 69.4040, 22.7611)
Luminance	0.6941 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Light Grass Green

#9AF764

ΔE00 1.73

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99EF63 #B963EF

analogous

#DFEF63 #99EF63 #63EF73

triadic

#99EF63 #6399EF #EF6399

tetradic

#99EF63 #63DFEF #B963EF #EF7363

square

#99EF63 #63DFEF #B963EF #EF7363

split-complementary

#99EF63 #7363EF #EF63DF

monochromatic

#58C414 #75E92B #99EF63 #BDF59B #E2FAD2

Accessibility & contrast

On white

1.41

#99EF63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.88

#99EF63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99EF63

14.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99EF63	#FFFFFF	#000000	##000000
##99EF63	1.00	1.41	14.88	14.88
#FFFFFF	1.41	1.00	21.00	21.00
#000000	14.88	21.00	1.00	1.00
##000000	14.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F7DE54

Deuteranopia (green-blind)

#EBD66D

Tritanopia (blue-blind)

#97E7D1

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #99ef63;
/* rgb */ color: rgb(153, 239, 99);
/* oklch */ color: oklch(86.9% 0.193 135.1);

Tailwind

colors: {
  custom: {
    50: '#bcf594',
    500: '#99ef63',
    950: '#000000',
  },
}

SCSS

$custom: #99ef63;
$custom-light: #bcf594;
$custom-dark: #000000;

JSON

{
  "hex": "#99ef63",
  "rgb": {
    "r": 153,
    "g": 239,
    "b": 99
  },
  "hsl": {
    "h": 96.857,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.86861,
    "c": 0.19337,
    "h": 135.1
  },
  "luminance": 0.69406
}

Semantic roles & 50–950 ramp

primary

#99EF63

secondary

#8B35C1

accent

#08DE8B

background

#FDFFFC

surface

#F9FEF4

border

#D2D6CE

text

#12170D

muted

#82857F

Preview Lab

Preview with #99EF63

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

Preview Lab → · Contrast checker → · Palette generator →