#99BB1B#99BB1B

#99BB1B is a light, vivid yellow-green. Relative luminance 0.424; OKLCH L 74.1% C 0.173 H 122.1°. Best body text is #000000 at 9.48:1 contrast (WCAG AA passes).

Color values

HEX	#99BB1B
RGB	rgb(153, 187, 27)
HSL	hsl(73, 75%, 42%)
HSV	hsv(73, 86%, 73%)
CMYK	cmyk(18.2%, 0%, 85.6%, 26.7%)
CIE-LAB	lab(71.14, -31.04, 67.97)
CIE-LCH	lch(71.14, 74.72, 114.55°)
OKLab	oklab(74.07% -0.0922 0.1468)
OKLCH	oklch(74.07% 0.173 122.1)
XYZ	xyz(31.1056, 42.3920, 7.5805)
Luminance	0.4239 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99BB1B #3D1BBB

analogous

#BB8D1B #99BB1B #49BB1B

triadic

#99BB1B #1B99BB #BB1B99

tetradic

#99BB1B #1BBB8D #3D1BBB #BB1B49

square

#99BB1B #1BBB8D #3D1BBB #BB1B49

split-complementary

#99BB1B #1B49BB #8D1BBB

monochromatic

#41500C #6D8613 #99BB1B #BCE132 #CEE967

Accessibility & contrast

On white

2.22

#99BB1B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.48

#99BB1B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99BB1B

9.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99BB1B	#FFFFFF	#000000	##000000
##99BB1B	1.00	2.22	9.48	9.48
#FFFFFF	2.22	1.00	21.00	21.00
#000000	9.48	21.00	1.00	1.00
##000000	9.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7AF00

Deuteranopia (green-blind)

#C2AE2F

Tritanopia (blue-blind)

#A2B19F

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #99bb1b;
/* rgb */ color: rgb(153, 187, 27);
/* oklch */ color: oklch(74.1% 0.173 122.1);

Tailwind

colors: {
  custom: {
    50: '#bbcf6a',
    500: '#99bb1b',
    950: '#000000',
  },
}

SCSS

$custom: #99bb1b;
$custom-light: #bbcf6a;
$custom-dark: #000000;

JSON

{
  "hex": "#99bb1b",
  "rgb": {
    "r": 153,
    "g": 187,
    "b": 27
  },
  "hsl": {
    "h": 72.75,
    "s": 74.766,
    "l": 41.961
  },
  "oklch": {
    "l": 0.74068,
    "c": 0.17333,
    "h": 122.1
  },
  "luminance": 0.42392
}

Semantic roles & 50–950 ramp

primary

#99BB1B

secondary

#7A63CE

accent

#36F15E

background

#FCFCF6

surface

#F8F9EC

border

#D1D2C7

text

#121307

muted

#81827A

Preview Lab

Preview with #99BB1B

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

Preview Lab → · Contrast checker → · Palette generator →