#99D438#99D438

#99D438 is a light, vivid yellow-green. Relative luminance 0.541; OKLCH L 80.1% C 0.189 H 128.5°. Best body text is #000000 at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#99D438
RGB	rgb(153, 212, 56)
HSL	hsl(83, 64%, 53%)
HSV	hsv(83, 74%, 83%)
CMYK	cmyk(27.8%, 0%, 73.6%, 16.9%)
CIE-LAB	lab(78.55, -41.15, 66.53)
CIE-LCH	lch(78.55, 78.23, 121.74°)
OKLab	oklab(80.11% -0.1177 0.1483)
OKLCH	oklch(80.11% 0.189 128.5)
XYZ	xyz(37.3941, 54.1439, 12.2213)
Luminance	0.5414 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99D438 #7338D4

analogous

#D4C138 #99D438 #4BD438

triadic

#99D438 #3899D4 #D43899

tetradic

#99D438 #38D4C1 #7338D4 #D4384B

square

#99D438 #38D4C1 #7338D4 #D4384B

split-complementary

#99D438 #384BD4 #C138D4

monochromatic

#54781A #78AA25 #99D438 #B3DF6A #CDEA9D

Accessibility & contrast

On white

1.78

#99D438 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.83

#99D438 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99D438

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99D438	#FFFFFF	#000000	##000000
##99D438	1.00	1.78	11.83	11.83
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.83	21.00	1.00	1.00
##000000	11.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC517

Deuteranopia (green-blind)

#D6C147

Tritanopia (blue-blind)

#9ECAB6

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #99d438;
/* rgb */ color: rgb(153, 212, 56);
/* oklch */ color: oklch(80.1% 0.189 128.5);

Tailwind

colors: {
  custom: {
    50: '#bbe179',
    500: '#99d438',
    950: '#000000',
  },
}

SCSS

$custom: #99d438;
$custom-light: #bbe179;
$custom-dark: #000000;

JSON

{
  "hex": "#99d438",
  "rgb": {
    "r": 153,
    "g": 212,
    "b": 56
  },
  "hsl": {
    "h": 82.692,
    "s": 64.463,
    "l": 52.549
  },
  "oklch": {
    "l": 0.80113,
    "c": 0.18935,
    "h": 128.5
  },
  "luminance": 0.54145
}

Semantic roles & 50–950 ramp

primary

#99D438

secondary

#4E3080

accent

#40E780

background

#FDFEFB

surface

#F9FCF2

border

#D2D5CC

text

#12150A

muted

#82847D

Preview Lab

Preview with #99D438

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

Preview Lab → · Contrast checker → · Palette generator →