#99B538#99B538

#99B538 is a light, vivid yellow-green. Relative luminance 0.401; OKLCH L 72.8% C 0.152 H 121.3°. Best body text is #000000 at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#99B538
RGB	rgb(153, 181, 56)
HSL	hsl(73, 53%, 46%)
HSV	hsv(73, 69%, 71%)
CMYK	cmyk(15.5%, 0%, 69.1%, 29%)
CIE-LAB	lab(69.54, -26.88, 57.61)
CIE-LCH	lch(69.54, 63.58, 115.01°)
OKLab	oklab(72.83% -0.0786 0.1296)
OKLCH	oklch(72.83% 0.152 121.3)
XYZ	xyz(30.3750, 40.1056, 9.8816)
Luminance	0.4011 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99B538 #5438B5

analogous

#B59338 #99B538 #5BB538

triadic

#99B538 #3899B5 #B53899

tetradic

#99B538 #38B593 #5438B5 #B5385B

square

#99B538 #38B593 #5438B5 #B5385B

split-complementary

#99B538 #385BB5 #9338B5

monochromatic

#4A581B #71862A #99B538 #B4CD5D #CADB8C

Accessibility & contrast

On white

2.33

#99B538 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.02

#99B538 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99B538

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99B538	#FFFFFF	#000000	##000000
##99B538	1.00	2.33	9.02	9.02
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.02	21.00	1.00	1.00
##000000	9.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0AA25

Deuteranopia (green-blind)

#BCAA42

Tritanopia (blue-blind)

#A1AC9C

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #99b538;
/* rgb */ color: rgb(153, 181, 56);
/* oklch */ color: oklch(72.8% 0.152 121.3);

Tailwind

colors: {
  custom: {
    50: '#bacb76',
    500: '#99b538',
    950: '#000000',
  },
}

SCSS

$custom: #99b538;
$custom-light: #bacb76;
$custom-dark: #000000;

JSON

{
  "hex": "#99b538",
  "rgb": {
    "r": 153,
    "g": 181,
    "b": 56
  },
  "hsl": {
    "h": 73.44,
    "s": 52.743,
    "l": 46.471
  },
  "oklch": {
    "l": 0.72826,
    "c": 0.15155,
    "h": 121.3
  },
  "luminance": 0.40106
}

Semantic roles & 50–950 ramp

primary

#99B538

secondary

#9283C6

accent

#4CDC6C

background

#FBFCF7

surface

#F7F8ED

border

#D0D1C8

text

#121309

muted

#81827B

Preview Lab

Preview with #99B538

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

Preview Lab → · Contrast checker → · Palette generator →