#99CA23#99CA23

#99CA23 is a light, vivid yellow-green. Relative luminance 0.491; OKLCH L 77.6% C 0.188 H 125.8°. Best body text is #000000 at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#99CA23
RGB	rgb(153, 202, 35)
HSL	hsl(78, 70%, 46%)
HSV	hsv(78, 83%, 79%)
CMYK	cmyk(24.3%, 0%, 82.7%, 20.8%)
CIE-LAB	lab(75.53, -37.67, 69.89)
CIE-LCH	lch(75.53, 79.39, 118.32°)
OKLab	oklab(77.64% -0.1097 0.1521)
OKLCH	oklch(77.64% 0.188 125.8)
XYZ	xyz(34.5611, 49.1342, 9.2528)
Luminance	0.4914 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99CA23 #5423CA

analogous

#CAA823 #99CA23 #46CA23

triadic

#99CA23 #2399CA #CA2399

tetradic

#99CA23 #23CAA8 #5423CA #CA2346

square

#99CA23 #23CAA8 #5423CA #CA2346

split-complementary

#99CA23 #2346CA #A823CA

monochromatic

#4A6211 #71961A #99CA23 #B4E04A #CAE97F

Accessibility & contrast

On white

1.94

#99CA23 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.83

#99CA23 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99CA23

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99CA23	#FFFFFF	#000000	##000000
##99CA23	1.00	1.94	10.83	10.83
#FFFFFF	1.94	1.00	21.00	21.00
#000000	10.83	21.00	1.00	1.00
##000000	10.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BC00

Deuteranopia (green-blind)

#CFB937

Tritanopia (blue-blind)

#A0C0AC

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #99ca23;
/* rgb */ color: rgb(153, 202, 35);
/* oklch */ color: oklch(77.6% 0.188 125.8);

Tailwind

colors: {
  custom: {
    50: '#bcda6f',
    500: '#99ca23',
    950: '#000000',
  },
}

SCSS

$custom: #99ca23;
$custom-light: #bcda6f;
$custom-dark: #000000;

JSON

{
  "hex": "#99ca23",
  "rgb": {
    "r": 153,
    "g": 202,
    "b": 35
  },
  "hsl": {
    "h": 77.605,
    "s": 70.464,
    "l": 46.471
  },
  "oklch": {
    "l": 0.77637,
    "c": 0.18755,
    "h": 125.8
  },
  "luminance": 0.49135
}

Semantic roles & 50–950 ramp

primary

#99CA23

secondary

#9278D1

accent

#3BED6F

background

#FCFDF7

surface

#F8FAED

border

#D1D3C8

text

#121408

muted

#81837B

Preview Lab

Preview with #99CA23

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

Preview Lab → · Contrast checker → · Palette generator →