#99FF61#99FF61

#99FF61 is a very light, highly saturated yellow-green. Relative luminance 0.792; OKLCH L 90.6% C 0.215 H 136.2°. Best body text is #000000 at 16.83:1 contrast (WCAG AA passes).

Color values

HEX	#99FF61
RGB	rgb(153, 255, 97)
HSL	hsl(99, 100%, 69%)
HSV	hsv(99, 62%, 100%)
CMYK	cmyk(40%, 0%, 62%, 0%)
CIE-LAB	lab(91.30, -56.07, 64.37)
CIE-LCH	lch(91.30, 85.37, 131.06°)
OKLab	oklab(90.61% -0.1554 0.149)
OKLCH	oklch(90.61% 0.215 136.2)
XYZ	xyz(51.0532, 79.1526, 23.8949)
Luminance	0.7915 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99FF61 #C761FF

analogous

#E8FF61 #99FF61 #61FF78

triadic

#99FF61 #6199FF #FF6199

tetradic

#99FF61 #61E8FF #C761FF #FF7861

square

#99FF61 #61E8FF #C761FF #FF7861

split-complementary

#99FF61 #7861FF #FF61E8

monochromatic

#51E600 #71FF24 #99FF61 #C1FF9E #E8FFDB

Accessibility & contrast

On white

1.25

#99FF61 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.83

#99FF61 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99FF61

16.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99FF61	#FFFFFF	#000000	##000000
##99FF61	1.00	1.25	16.83	16.83
#FFFFFF	1.25	1.00	21.00	21.00
#000000	16.83	21.00	1.00	1.00
##000000	16.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB4E

Deuteranopia (green-blind)

#F9E36E

Tritanopia (blue-blind)

#95F6DE

Achromatopsia (no color)

#E6E6E6

Design tokens & code

CSS

--color: #99ff61;
/* rgb */ color: rgb(153, 255, 97);
/* oklch */ color: oklch(90.6% 0.215 136.2);

Tailwind

colors: {
  custom: {
    50: '#bdff94',
    500: '#99ff61',
    950: '#000000',
  },
}

SCSS

$custom: #99ff61;
$custom-light: #bdff94;
$custom-dark: #000000;

JSON

{
  "hex": "#99ff61",
  "rgb": {
    "r": 153,
    "g": 255,
    "b": 97
  },
  "hsl": {
    "h": 98.734,
    "s": 100,
    "l": 69.02
  },
  "oklch": {
    "l": 0.90611,
    "c": 0.21528,
    "h": 136.2
  },
  "luminance": 0.79155
}

Semantic roles & 50–950 ramp

primary

#99FF61

secondary

#9C2BDA

accent

#00E694

background

#FDFFFC

surface

#F9FFF5

border

#D2D7CF

text

#13180E

muted

#82867F

Preview Lab

Preview with #99FF61

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

Preview Lab → · Contrast checker → · Palette generator →