#99C557#99C557

#99C557 is a light, vivid yellow-green. Relative luminance 0.474; OKLCH L 76.9% C 0.147 H 127.7°. Best body text is #000000 at 10.48:1 contrast (WCAG AA passes).

Color values

HEX	#99C557
RGB	rgb(153, 197, 87)
HSL	hsl(84, 49%, 56%)
HSV	hsv(84, 56%, 77%)
CMYK	cmyk(22.3%, 0%, 55.8%, 22.7%)
CIE-LAB	lab(74.44, -32.05, 49.67)
CIE-LCH	lch(74.44, 59.12, 122.83°)
OKLab	oklab(76.86% -0.0901 0.1166)
OKLCH	oklch(76.86% 0.147 127.7)
XYZ	xyz(34.8233, 47.3923, 16.3280)
Luminance	0.4739 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99C557 #8357C5

analogous

#C5BA57 #99C557 #62C557

triadic

#99C557 #5799C5 #C55799

tetradic

#99C557 #57C5BA #8357C5 #C55762

square

#99C557 #57C5BA #8357C5 #C55762

split-complementary

#99C557 #5762C5 #BA57C5

monochromatic

#597829 #7AA639 #99C557 #B5D584 #D0E4B2

Accessibility & contrast

On white

2.00

#99C557 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.48

#99C557 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99C557

10.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99C557	#FFFFFF	#000000	##000000
##99C557	1.00	2.00	10.48	10.48
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.48	21.00	1.00	1.00
##000000	10.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CEB94C

Deuteranopia (green-blind)

#C8B65E

Tritanopia (blue-blind)

#9EBDAD

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #99c557;
/* rgb */ color: rgb(153, 197, 87);
/* oklch */ color: oklch(76.9% 0.147 127.7);

Tailwind

colors: {
  custom: {
    50: '#b9d68a',
    500: '#99c557',
    950: '#000000',
  },
}

SCSS

$custom: #99c557;
$custom-light: #b9d68a;
$custom-dark: #000000;

JSON

{
  "hex": "#99c557",
  "rgb": {
    "r": 153,
    "g": 197,
    "b": 87
  },
  "hsl": {
    "h": 84,
    "s": 48.673,
    "l": 55.686
  },
  "oklch": {
    "l": 0.76864,
    "c": 0.14736,
    "h": 127.7
  },
  "luminance": 0.47393
}

Semantic roles & 50–950 ramp

primary

#99C557

secondary

#B7A5D3

accent

#50D886

background

#FBFDF8

surface

#F6FAF0

border

#D0D3CB

text

#12140C

muted

#81837D

Preview Lab

Preview with #99C557

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

Preview Lab → · Contrast checker → · Palette generator →