#99CB40#99CB40

#99CB40 is a light, vivid yellow-green. Relative luminance 0.499; OKLCH L 78.0% C 0.173 H 127.2°. Best body text is #000000 at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#99CB40
RGB	rgb(153, 203, 64)
HSL	hsl(82, 57%, 52%)
HSV	hsv(82, 68%, 80%)
CMYK	cmyk(24.6%, 0%, 68.5%, 20.4%)
CIE-LAB	lab(75.98, -36.66, 61.11)
CIE-LCH	lch(75.98, 71.26, 120.96°)
OKLab	oklab(78.05% -0.1048 0.1381)
OKLCH	oklch(78.05% 0.173 127.2)
XYZ	xyz(35.4183, 49.8537, 12.6062)
Luminance	0.4985 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99CB40 #7240CB

analogous

#CBB840 #99CB40 #53CB40

triadic

#99CB40 #4099CB #CB4099

tetradic

#99CB40 #40CBB8 #7240CB #CB4053

square

#99CB40 #40CBB8 #7240CB #CB4053

split-complementary

#99CB40 #4053CB #B840CB

monochromatic

#54721F #77A22C #99CB40 #B3D870 #CCE5A0

Accessibility & contrast

On white

1.91

#99CB40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.97

#99CB40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99CB40

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99CB40	#FFFFFF	#000000	##000000
##99CB40	1.00	1.91	10.97	10.97
#FFFFFF	1.91	1.00	21.00	21.00
#000000	10.97	21.00	1.00	1.00
##000000	10.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BD2B

Deuteranopia (green-blind)

#CEBA4C

Tritanopia (blue-blind)

#9FC2AF

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #99cb40;
/* rgb */ color: rgb(153, 203, 64);
/* oklch */ color: oklch(78.0% 0.173 127.2);

Tailwind

colors: {
  custom: {
    50: '#bbdb7d',
    500: '#99cb40',
    950: '#000000',
  },
}

SCSS

$custom: #99cb40;
$custom-light: #bbdb7d;
$custom-dark: #000000;

JSON

{
  "hex": "#99cb40",
  "rgb": {
    "r": 153,
    "g": 203,
    "b": 64
  },
  "hsl": {
    "h": 81.583,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.78046,
    "c": 0.17338,
    "h": 127.2
  },
  "luminance": 0.49854
}

Semantic roles & 50–950 ramp

primary

#99CB40

secondary

#AB95D2

accent

#47E07E

background

#FBFDF7

surface

#F7FBEE

border

#D0D4C9

text

#12150A

muted

#81837C

Preview Lab

Preview with #99CB40

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

Preview Lab → · Contrast checker → · Palette generator →