#99D43B#99D43B

#99D43B is a light, vivid yellow-green. Relative luminance 0.542; OKLCH L 80.1% C 0.188 H 128.6°. Best body text is #000000 at 11.84:1 contrast (WCAG AA passes).

Color values

HEX	#99D43B
RGB	rgb(153, 212, 59)
HSL	hsl(83, 64%, 53%)
HSV	hsv(83, 72%, 83%)
CMYK	cmyk(27.8%, 0%, 72.2%, 16.9%)
CIE-LAB	lab(78.56, -40.98, 65.53)
CIE-LCH	lch(78.56, 77.29, 122.02°)
OKLab	oklab(80.13% -0.117 0.1466)
OKLCH	oklch(80.13% 0.188 128.6)
XYZ	xyz(37.4697, 54.1741, 12.6193)
Luminance	0.5417 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99D43B #763BD4

analogous

#D4C23B #99D43B #4CD43B

triadic

#99D43B #3B99D4 #D43B99

tetradic

#99D43B #3BD4C2 #763BD4 #D43B4C

square

#99D43B #3BD4C2 #763BD4 #D43B4C

split-complementary

#99D43B #3B4CD4 #C23BD4

monochromatic

#557A1B #78AC26 #99D43B #B3DF6D #CDEA9F

Accessibility & contrast

On white

1.77

#99D43B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.84

#99D43B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99D43B

11.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99D43B	#FFFFFF	#000000	##000000
##99D43B	1.00	1.77	11.84	11.84
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.84	21.00	1.00	1.00
##000000	11.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC51E

Deuteranopia (green-blind)

#D6C149

Tritanopia (blue-blind)

#9ECBB6

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #99d43b;
/* rgb */ color: rgb(153, 212, 59);
/* oklch */ color: oklch(80.1% 0.188 128.6);

Tailwind

colors: {
  custom: {
    50: '#bbe17b',
    500: '#99d43b',
    950: '#000000',
  },
}

SCSS

$custom: #99d43b;
$custom-light: #bbe17b;
$custom-dark: #000000;

JSON

{
  "hex": "#99d43b",
  "rgb": {
    "r": 153,
    "g": 212,
    "b": 59
  },
  "hsl": {
    "h": 83.137,
    "s": 64.017,
    "l": 53.137
  },
  "oklch": {
    "l": 0.80133,
    "c": 0.18762,
    "h": 128.6
  },
  "luminance": 0.54175
}

Semantic roles & 50–950 ramp

primary

#99D43B

secondary

#503182

accent

#41E781

background

#FDFEFB

surface

#F9FCF2

border

#D2D5CC

text

#12150A

muted

#82847D

Preview Lab

Preview with #99D43B

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

Preview Lab → · Contrast checker → · Palette generator →