#99C640#99C640

#99C640 is a light, vivid yellow-green. Relative luminance 0.475; OKLCH L 76.9% C 0.167 H 126.1°. Best body text is #000000 at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#99C640
RGB	rgb(153, 198, 64)
HSL	hsl(80, 54%, 51%)
HSV	hsv(80, 68%, 78%)
CMYK	cmyk(22.7%, 0%, 67.7%, 22.4%)
CIE-LAB	lab(74.53, -34.38, 59.61)
CIE-LCH	lch(74.53, 68.82, 119.97°)
OKLab	oklab(76.87% -0.0986 0.1349)
OKLCH	oklch(76.87% 0.167 126.1)
XYZ	xyz(34.2565, 47.5301, 12.2189)
Luminance	0.4753 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99C640 #6D40C6

analogous

#C6B040 #99C640 #56C640

triadic

#99C640 #4099C6 #C64099

tetradic

#99C640 #40C6B0 #6D40C6 #C64056

square

#99C640 #40C6B0 #6D40C6 #C64056

split-complementary

#99C640 #4056C6 #B040C6

monochromatic

#526C20 #769B2E #99C640 #B2D46F #CBE29E

Accessibility & contrast

On white

2.00

#99C640 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.51

#99C640 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99C640

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99C640	#FFFFFF	#000000	##000000
##99C640	1.00	2.00	10.51	10.51
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.51	21.00	1.00	1.00
##000000	10.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0B92C

Deuteranopia (green-blind)

#CAB74B

Tritanopia (blue-blind)

#9FBDAB

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #99c640;
/* rgb */ color: rgb(153, 198, 64);
/* oklch */ color: oklch(76.9% 0.167 126.1);

Tailwind

colors: {
  custom: {
    50: '#bad77c',
    500: '#99c640',
    950: '#000000',
  },
}

SCSS

$custom: #99c640;
$custom-light: #bad77c;
$custom-dark: #000000;

JSON

{
  "hex": "#99c640",
  "rgb": {
    "r": 153,
    "g": 198,
    "b": 64
  },
  "hsl": {
    "h": 80.149,
    "s": 54.032,
    "l": 51.373
  },
  "oklch": {
    "l": 0.7687,
    "c": 0.16712,
    "h": 126.1
  },
  "luminance": 0.47531
}

Semantic roles & 50–950 ramp

primary

#99C640

secondary

#A793CE

accent

#4ADD7C

background

#FBFDF7

surface

#F7FAEE

border

#D0D3C9

text

#12140A

muted

#81837C

Preview Lab

Preview with #99C640

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

Preview Lab → · Contrast checker → · Palette generator →