#99D557#99D557

#99D557 is a light, vivid yellow-green. Relative luminance 0.550; OKLCH L 80.6% C 0.169 H 130.8°. Best body text is #000000 at 12.01:1 contrast (WCAG AA passes).

Color values

HEX	#99D557
RGB	rgb(153, 213, 87)
HSL	hsl(89, 60%, 59%)
HSV	hsv(89, 59%, 84%)
CMYK	cmyk(28.2%, 0%, 59.2%, 16.5%)
CIE-LAB	lab(79.07, -39.35, 54.96)
CIE-LCH	lch(79.07, 67.59, 125.60°)
OKLab	oklab(80.61% -0.1103 0.1279)
OKLCH	oklch(80.61% 0.169 130.8)
XYZ	xyz(38.6510, 55.0478, 17.6039)
Luminance	0.5505 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99D557 #9357D5

analogous

#D5D257 #99D557 #5AD557

triadic

#99D557 #5799D5 #D55799

tetradic

#99D557 #57D5D2 #9357D5 #D5575A

square

#99D557 #57D5D2 #9357D5 #D5575A

split-complementary

#99D557 #575AD5 #D257D5

monochromatic

#5B8E24 #7BBF30 #99D557 #B7E188 #D4EDB9

Accessibility & contrast

On white

1.75

#99D557 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.01

#99D557 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99D557

12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99D557	#FFFFFF	#000000	##000000
##99D557	1.00	1.75	12.01	12.01
#FFFFFF	1.75	1.00	21.00	21.00
#000000	12.01	21.00	1.00	1.00
##000000	12.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC749

Deuteranopia (green-blind)

#D5C260

Tritanopia (blue-blind)

#9CCDBA

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #99d557;
/* rgb */ color: rgb(153, 213, 87);
/* oklch */ color: oklch(80.6% 0.169 130.8);

Tailwind

colors: {
  custom: {
    50: '#bae28b',
    500: '#99d557',
    950: '#000000',
  },
}

SCSS

$custom: #99d557;
$custom-light: #bae28b;
$custom-dark: #000000;

JSON

{
  "hex": "#99d557",
  "rgb": {
    "r": 153,
    "g": 213,
    "b": 87
  },
  "hsl": {
    "h": 88.571,
    "s": 60,
    "l": 58.824
  },
  "oklch": {
    "l": 0.80613,
    "c": 0.16891,
    "h": 130.8
  },
  "luminance": 0.55049
}

Semantic roles & 50–950 ramp

primary

#99D557

secondary

#663C94

accent

#45E390

background

#FDFEFC

surface

#F8FCF4

border

#D1D5CE

text

#12150C

muted

#82847F

Preview Lab

Preview with #99D557

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

Preview Lab → · Contrast checker → · Palette generator →