#99CC40#99CC40

#99CC40 is a light, vivid yellow-green. Relative luminance 0.503; OKLCH L 78.3% C 0.175 H 127.4°. Best body text is #000000 at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#99CC40
RGB	rgb(153, 204, 64)
HSL	hsl(82, 58%, 53%)
HSV	hsv(82, 69%, 80%)
CMYK	cmyk(25%, 0%, 68.6%, 20%)
CIE-LAB	lab(76.27, -37.11, 61.41)
CIE-LCH	lch(76.27, 71.75, 121.15°)
OKLab	oklab(78.28% -0.1061 0.1387)
OKLCH	oklch(78.28% 0.175 127.4)
XYZ	xyz(35.6552, 50.3275, 12.6852)
Luminance	0.5033 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99CC40 #7340CC

analogous

#CCB940 #99CC40 #53CC40

triadic

#99CC40 #4099CC #CC4099

tetradic

#99CC40 #40CCB9 #7340CC #CC4053

square

#99CC40 #40CCB9 #7340CC #CC4053

split-complementary

#99CC40 #4053CC #B940CC

monochromatic

#54731F #78A32C #99CC40 #B3D970 #CDE6A1

Accessibility & contrast

On white

1.90

#99CC40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.07

#99CC40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99CC40

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99CC40	#FFFFFF	#000000	##000000
##99CC40	1.00	1.90	11.07	11.07
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.07	21.00	1.00	1.00
##000000	11.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6BE2A

Deuteranopia (green-blind)

#CFBB4C

Tritanopia (blue-blind)

#9FC3B0

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #99cc40;
/* rgb */ color: rgb(153, 204, 64);
/* oklch */ color: oklch(78.3% 0.175 127.4);

Tailwind

colors: {
  custom: {
    50: '#bbdb7d',
    500: '#99cc40',
    950: '#000000',
  },
}

SCSS

$custom: #99cc40;
$custom-light: #bbdb7d;
$custom-dark: #000000;

JSON

{
  "hex": "#99cc40",
  "rgb": {
    "r": 153,
    "g": 204,
    "b": 64
  },
  "hsl": {
    "h": 81.857,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.78282,
    "c": 0.17462,
    "h": 127.4
  },
  "luminance": 0.50328
}

Semantic roles & 50–950 ramp

primary

#99CC40

secondary

#4E347C

accent

#47E17F

background

#FDFEFB

surface

#F9FCF2

border

#D2D5CC

text

#12150A

muted

#82847D

Preview Lab

Preview with #99CC40

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

Preview Lab → · Contrast checker → · Palette generator →