#99CD39#99CD39

#99CD39 is a light, vivid yellow-green. Relative luminance 0.507; OKLCH L 78.5% C 0.180 H 127.2°. Best body text is #000000 at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#99CD39
RGB	rgb(153, 205, 57)
HSL	hsl(81, 60%, 51%)
HSV	hsv(81, 72%, 80%)
CMYK	cmyk(25.4%, 0%, 72.2%, 19.6%)
CIE-LAB	lab(76.52, -37.99, 64.21)
CIE-LCH	lch(76.52, 74.61, 120.61°)
OKLab	oklab(78.47% -0.1091 0.1436)
OKLCH	oklch(78.47% 0.18 127.2)
XYZ	xyz(35.7068, 50.7297, 11.7807)
Luminance	0.5073 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99CD39 #6D39CD

analogous

#CDB739 #99CD39 #4FCD39

triadic

#99CD39 #3999CD #CD3999

tetradic

#99CD39 #39CDB7 #6D39CD #CD394F

square

#99CD39 #39CDB7 #6D39CD #CD394F

split-complementary

#99CD39 #394FCD #B739CD

monochromatic

#526F1C #76A028 #99CD39 #B2D96A #CBE69B

Accessibility & contrast

On white

1.88

#99CD39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.15

#99CD39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99CD39

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99CD39	#FFFFFF	#000000	##000000
##99CD39	1.00	1.88	11.15	11.15
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.15	21.00	1.00	1.00
##000000	11.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D7BF1D

Deuteranopia (green-blind)

#D0BC46

Tritanopia (blue-blind)

#9FC4B0

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #99cd39;
/* rgb */ color: rgb(153, 205, 57);
/* oklch */ color: oklch(78.5% 0.180 127.2);

Tailwind

colors: {
  custom: {
    50: '#bbdc79',
    500: '#99cd39',
    950: '#000000',
  },
}

SCSS

$custom: #99cd39;
$custom-light: #bbdc79;
$custom-dark: #000000;

JSON

{
  "hex": "#99cd39",
  "rgb": {
    "r": 153,
    "g": 205,
    "b": 57
  },
  "hsl": {
    "h": 81.081,
    "s": 59.677,
    "l": 51.373
  },
  "oklch": {
    "l": 0.78466,
    "c": 0.18028,
    "h": 127.2
  },
  "luminance": 0.5073
}

Semantic roles & 50–950 ramp

primary

#99CD39

secondary

#4B3279

accent

#45E37C

background

#FDFEFB

surface

#F9FCF2

border

#D2D5CC

text

#12150A

muted

#82847D

Preview Lab

Preview with #99CD39

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

Preview Lab → · Contrast checker → · Palette generator →