#99C831#99C831

#99C831 is a light, vivid yellow-green. Relative luminance 0.483; OKLCH L 77.2% C 0.179 H 125.9°. Best body text is #000000 at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#99C831
RGB	rgb(153, 200, 49)
HSL	hsl(79, 61%, 49%)
HSV	hsv(79, 76%, 78%)
CMYK	cmyk(23.5%, 0%, 75.5%, 21.6%)
CIE-LAB	lab(75.02, -36.17, 65.44)
CIE-LCH	lch(75.02, 74.78, 118.93°)
OKLab	oklab(77.24% -0.1047 0.1449)
OKLCH	oklch(77.24% 0.179 125.9)
XYZ	xyz(34.3457, 48.3021, 10.4189)
Luminance	0.4830 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99C831 #6031C8

analogous

#C8AC31 #99C831 #4EC831

triadic

#99C831 #3199C8 #C83199

tetradic

#99C831 #31C8AC #6031C8 #C8314E

square

#99C831 #31C8AC #6031C8 #C8314E

split-complementary

#99C831 #314EC8 #AC31C8

monochromatic

#4E6619 #739725 #99C831 #B2D85F #CAE490

Accessibility & contrast

On white

1.97

#99C831 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.66

#99C831 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99C831

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99C831	#FFFFFF	#000000	##000000
##99C831	1.00	1.97	10.66	10.66
#FFFFFF	1.97	1.00	21.00	21.00
#000000	10.66	21.00	1.00	1.00
##000000	10.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BA0B

Deuteranopia (green-blind)

#CCB840

Tritanopia (blue-blind)

#A0BEAC

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #99c831;
/* rgb */ color: rgb(153, 200, 49);
/* oklch */ color: oklch(77.2% 0.179 125.9);

Tailwind

colors: {
  custom: {
    50: '#bbd975',
    500: '#99c831',
    950: '#000000',
  },
}

SCSS

$custom: #99c831;
$custom-light: #bbd975;
$custom-dark: #000000;

JSON

{
  "hex": "#99c831",
  "rgb": {
    "r": 153,
    "g": 200,
    "b": 49
  },
  "hsl": {
    "h": 78.675,
    "s": 60.643,
    "l": 48.824
  },
  "oklch": {
    "l": 0.77235,
    "c": 0.17878,
    "h": 125.9
  },
  "luminance": 0.48303
}

Semantic roles & 50–950 ramp

primary

#99C831

secondary

#9D86CE

accent

#44E476

background

#FBFDF7

surface

#F7FAED

border

#D0D3C8

text

#121409

muted

#81837B

Preview Lab

Preview with #99C831

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

Preview Lab → · Contrast checker → · Palette generator →