#99C63B#99C63B

#99C63B is a light, vivid yellow-green. Relative luminance 0.475; OKLCH L 76.8% C 0.170 H 125.9°. Best body text is #000000 at 10.50:1 contrast (WCAG AA passes).

Color values

HEX	#99C63B
RGB	rgb(153, 198, 59)
HSL	hsl(79, 55%, 50%)
HSV	hsv(79, 70%, 78%)
CMYK	cmyk(22.7%, 0%, 70.2%, 22.4%)
CIE-LAB	lab(74.49, -34.70, 61.48)
CIE-LCH	lch(74.49, 70.59, 119.44°)
OKLab	oklab(76.83% -0.0999 0.1381)
OKLCH	oklch(76.83% 0.17 125.9)
XYZ	xyz(34.1205, 47.4758, 11.5029)
Luminance	0.4748 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99C63B #683BC6

analogous

#C6AD3B #99C63B #54C63B

triadic

#99C63B #3B99C6 #C63B99

tetradic

#99C63B #3BC6AD #683BC6 #C63B54

square

#99C63B #3BC6AD #683BC6 #C63B54

split-complementary

#99C63B #3B54C6 #AD3BC6

monochromatic

#50681E #75982C #99C63B #B2D46A #CAE29A

Accessibility & contrast

On white

2.00

#99C63B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.50

#99C63B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99C63B

10.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99C63B	#FFFFFF	#000000	##000000
##99C63B	1.00	2.00	10.50	10.50
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.50	21.00	1.00	1.00
##000000	10.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0B924

Deuteranopia (green-blind)

#CAB747

Tritanopia (blue-blind)

#9FBDAB

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #99c63b;
/* rgb */ color: rgb(153, 198, 59);
/* oklch */ color: oklch(76.8% 0.170 125.9);

Tailwind

colors: {
  custom: {
    50: '#bbd779',
    500: '#99c63b',
    950: '#000000',
  },
}

SCSS

$custom: #99c63b;
$custom-light: #bbd779;
$custom-dark: #000000;

JSON

{
  "hex": "#99c63b",
  "rgb": {
    "r": 153,
    "g": 198,
    "b": 59
  },
  "hsl": {
    "h": 79.424,
    "s": 54.941,
    "l": 50.392
  },
  "oklch": {
    "l": 0.76831,
    "c": 0.17046,
    "h": 125.9
  },
  "luminance": 0.47476
}

Semantic roles & 50–950 ramp

primary

#99C63B

secondary

#A38FCD

accent

#4ADE7A

background

#FBFDF7

surface

#F7FAEE

border

#D0D3C9

text

#12140A

muted

#81837C

Preview Lab

Preview with #99C63B

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

Preview Lab → · Contrast checker → · Palette generator →