#99D440#99D440

#99D440 is a light, vivid yellow-green. Relative luminance 0.542; OKLCH L 80.2% C 0.185 H 128.9°. Best body text is #000000 at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#99D440
RGB	rgb(153, 212, 64)
HSL	hsl(84, 63%, 54%)
HSV	hsv(84, 70%, 83%)
CMYK	cmyk(27.8%, 0%, 69.8%, 16.9%)
CIE-LAB	lab(78.59, -40.67, 63.77)
CIE-LCH	lch(78.59, 75.64, 122.53°)
OKLab	oklab(80.17% -0.1158 0.1437)
OKLCH	oklch(80.17% 0.185 128.9)
XYZ	xyz(37.6057, 54.2285, 13.3353)
Luminance	0.5423 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99D440 #7B40D4

analogous

#D4C540 #99D440 #4FD440

triadic

#99D440 #4099D4 #D44099

tetradic

#99D440 #40D4C5 #7B40D4 #D4404F

square

#99D440 #40D4C5 #7B40D4 #D4404F

split-complementary

#99D440 #404FD4 #C540D4

monochromatic

#577D1C #79AF27 #99D440 #B4DF72 #CEEAA4

Accessibility & contrast

On white

1.77

#99D440 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.85

#99D440 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99D440

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99D440	#FFFFFF	#000000	##000000
##99D440	1.00	1.77	11.85	11.85
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.85	21.00	1.00	1.00
##000000	11.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC528

Deuteranopia (green-blind)

#D6C14D

Tritanopia (blue-blind)

#9ECBB7

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #99d440;
/* rgb */ color: rgb(153, 212, 64);
/* oklch */ color: oklch(80.2% 0.185 128.9);

Tailwind

colors: {
  custom: {
    50: '#bbe17d',
    500: '#99d440',
    950: '#000000',
  },
}

SCSS

$custom: #99d440;
$custom-light: #bbe17d;
$custom-dark: #000000;

JSON

{
  "hex": "#99d440",
  "rgb": {
    "r": 153,
    "g": 212,
    "b": 64
  },
  "hsl": {
    "h": 83.919,
    "s": 63.248,
    "l": 54.118
  },
  "oklch": {
    "l": 0.80169,
    "c": 0.18455,
    "h": 128.9
  },
  "luminance": 0.54229
}

Semantic roles & 50–950 ramp

primary

#99D440

secondary

#543385

accent

#42E683

background

#FDFEFB

surface

#F9FCF2

border

#D2D5CC

text

#12150A

muted

#82847D

Preview Lab

Preview with #99D440

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

Preview Lab → · Contrast checker → · Palette generator →