#99CB3B#99CB3B

#99CB3B is a light, vivid yellow-green. Relative luminance 0.498; OKLCH L 78.0% C 0.177 H 126.9°. Best body text is #000000 at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#99CB3B
RGB	rgb(153, 203, 59)
HSL	hsl(81, 58%, 51%)
HSV	hsv(81, 71%, 80%)
CMYK	cmyk(24.6%, 0%, 70.9%, 20.4%)
CIE-LAB	lab(75.95, -36.98, 62.93)
CIE-LCH	lch(75.95, 72.99, 120.44°)
OKLab	oklab(78.01% -0.1061 0.1412)
OKLCH	oklch(78.01% 0.177 126.9)
XYZ	xyz(35.2823, 49.7993, 11.8902)
Luminance	0.4980 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99CB3B #6D3BCB

analogous

#CBB53B #99CB3B #51CB3B

triadic

#99CB3B #3B99CB #CB3B99

tetradic

#99CB3B #3BCBB5 #6D3BCB #CB3B51

square

#99CB3B #3BCBB5 #6D3BCB #CB3B51

split-complementary

#99CB3B #3B51CB #B53BCB

monochromatic

#526E1D #769F2A #99CB3B #B2D86B #CBE59C

Accessibility & contrast

On white

1.92

#99CB3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.96

#99CB3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99CB3B

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99CB3B	#FFFFFF	#000000	##000000
##99CB3B	1.00	1.92	10.96	10.96
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.96	21.00	1.00	1.00
##000000	10.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BD22

Deuteranopia (green-blind)

#CFBA48

Tritanopia (blue-blind)

#9FC2AF

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #99cb3b;
/* rgb */ color: rgb(153, 203, 59);
/* oklch */ color: oklch(78.0% 0.177 126.9);

Tailwind

colors: {
  custom: {
    50: '#bbdb7a',
    500: '#99cb3b',
    950: '#000000',
  },
}

SCSS

$custom: #99cb3b;
$custom-light: #bbdb7a;
$custom-dark: #000000;

JSON

{
  "hex": "#99cb3b",
  "rgb": {
    "r": 153,
    "g": 203,
    "b": 59
  },
  "hsl": {
    "h": 80.833,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.78009,
    "c": 0.17662,
    "h": 126.9
  },
  "luminance": 0.498
}

Semantic roles & 50–950 ramp

primary

#99CB3B

secondary

#A791D1

accent

#47E17C

background

#FBFDF7

surface

#F7FBEE

border

#D0D4C9

text

#12150A

muted

#81837C

Preview Lab

Preview with #99CB3B

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

Preview Lab → · Contrast checker → · Palette generator →