#99CE40#99CE40

#99CE40 is a light, vivid yellow-green. Relative luminance 0.513; OKLCH L 78.8% C 0.177 H 127.8°. Best body text is #000000 at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#99CE40
RGB	rgb(153, 206, 64)
HSL	hsl(82, 59%, 53%)
HSV	hsv(82, 69%, 81%)
CMYK	cmyk(25.7%, 0%, 68.9%, 19.2%)
CIE-LAB	lab(76.85, -38.01, 62.00)
CIE-LCH	lch(76.85, 72.72, 121.51°)
OKLab	oklab(78.75% -0.1085 0.14)
OKLCH	oklch(78.75% 0.177 127.8)
XYZ	xyz(36.1336, 51.2843, 12.8446)
Luminance	0.5129 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99CE40 #7540CE

analogous

#CEBC40 #99CE40 #52CE40

triadic

#99CE40 #4099CE #CE4099

tetradic

#99CE40 #40CEBC #7540CE #CE4052

square

#99CE40 #40CEBC #7540CE #CE4052

split-complementary

#99CE40 #4052CE #BC40CE

monochromatic

#55751E #78A62B #99CE40 #B3DA71 #CDE7A1

Accessibility & contrast

On white

1.87

#99CE40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.26

#99CE40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99CE40

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99CE40	#FFFFFF	#000000	##000000
##99CE40	1.00	1.87	11.26	11.26
#FFFFFF	1.87	1.00	21.00	21.00
#000000	11.26	21.00	1.00	1.00
##000000	11.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C02A

Deuteranopia (green-blind)

#D1BD4C

Tritanopia (blue-blind)

#9EC5B2

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #99ce40;
/* rgb */ color: rgb(153, 206, 64);
/* oklch */ color: oklch(78.8% 0.177 127.8);

Tailwind

colors: {
  custom: {
    50: '#bbdd7d',
    500: '#99ce40',
    950: '#000000',
  },
}

SCSS

$custom: #99ce40;
$custom-light: #bbdd7d;
$custom-dark: #000000;

JSON

{
  "hex": "#99ce40",
  "rgb": {
    "r": 153,
    "g": 206,
    "b": 64
  },
  "hsl": {
    "h": 82.394,
    "s": 59.167,
    "l": 52.941
  },
  "oklch": {
    "l": 0.78753,
    "c": 0.17712,
    "h": 127.8
  },
  "luminance": 0.51285
}

Semantic roles & 50–950 ramp

primary

#99CE40

secondary

#50347E

accent

#45E280

background

#FDFEFB

surface

#F9FCF2

border

#D2D5CC

text

#12150A

muted

#82847D

Preview Lab

Preview with #99CE40

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

Preview Lab → · Contrast checker → · Palette generator →