#99EF61#99EF61

#99EF61 is a very light, vivid yellow-green. Relative luminance 0.694; OKLCH L 86.8% C 0.195 H 134.9°. Best body text is #000000 at 14.87:1 contrast (WCAG AA passes).

Color values

HEX	#99EF61
RGB	rgb(153, 239, 97)
HSL	hsl(96, 82%, 66%)
HSV	hsv(96, 59%, 94%)
CMYK	cmyk(36%, 0%, 59.4%, 6.3%)
CIE-LAB	lab(86.69, -49.59, 59.22)
CIE-LCH	lch(86.69, 77.24, 129.94°)
OKLab	oklab(86.84% -0.1377 0.138)
OKLCH	oklch(86.84% 0.195 134.9)
XYZ	xyz(46.1600, 69.3663, 22.2638)
Luminance	0.6937 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Light Grass Green

#9AF764

ΔE00 1.71

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99EF61 #B761EF

analogous

#E0EF61 #99EF61 #61EF70

triadic

#99EF61 #6199EF #EF6199

tetradic

#99EF61 #61E0EF #B761EF #EF7061

square

#99EF61 #61E0EF #B761EF #EF7061

split-complementary

#99EF61 #7061EF #EF61E0

monochromatic

#58C214 #75E929 #99EF61 #BDF599 #E1FAD0

Accessibility & contrast

On white

1.41

#99EF61 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.87

#99EF61 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99EF61

14.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99EF61	#FFFFFF	#000000	##000000
##99EF61	1.00	1.41	14.87	14.87
#FFFFFF	1.41	1.00	21.00	21.00
#000000	14.87	21.00	1.00	1.00
##000000	14.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F7DE51

Deuteranopia (green-blind)

#EBD66C

Tritanopia (blue-blind)

#98E7D1

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #99ef61;
/* rgb */ color: rgb(153, 239, 97);
/* oklch */ color: oklch(86.8% 0.195 134.9);

Tailwind

colors: {
  custom: {
    50: '#bcf593',
    500: '#99ef61',
    950: '#000000',
  },
}

SCSS

$custom: #99ef61;
$custom-light: #bcf593;
$custom-dark: #000000;

JSON

{
  "hex": "#99ef61",
  "rgb": {
    "r": 153,
    "g": 239,
    "b": 97
  },
  "hsl": {
    "h": 96.338,
    "s": 81.609,
    "l": 65.882
  },
  "oklch": {
    "l": 0.8684,
    "c": 0.19496,
    "h": 134.9
  },
  "luminance": 0.69368
}

Semantic roles & 50–950 ramp

primary

#99EF61

secondary

#8934C0

accent

#08DE89

background

#FDFFFC

surface

#F9FEF4

border

#D2D6CE

text

#12170D

muted

#82857F

Preview Lab

Preview with #99EF61

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

Preview Lab → · Contrast checker → · Palette generator →