#99CF3B#99CF3B

#99CF3B is a light, vivid yellow-green. Relative luminance 0.517; OKLCH L 79.0% C 0.182 H 127.7°. Best body text is #000000 at 11.34:1 contrast (WCAG AA passes).

Color values

HEX#99CF3B
RGBrgb(153, 207, 59)
HSLhsl(82, 61%, 52%)
HSVhsv(82, 71%, 81%)
CMYKcmyk(26.1%, 0%, 71.5%, 18.8%)
CIE-LABlab(77.11, -38.77, 64.09)
CIE-LCHlch(77.11, 74.90, 121.17°)
OKLaboklab(78.95% -0.111 0.1436)
OKLCHoklch(78.95% 0.182 127.7)
XYZxyz(36.2391, 51.7129, 12.2091)
Luminance0.5171 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#99CF3B #713BCF
analogous
#CFBB3B #99CF3B #4FCF3B
triadic
#99CF3B #3B99CF #CF3B99
tetradic
#99CF3B #3BCFBB #713BCF #CF3B4F
square
#99CF3B #3BCFBB #713BCF #CF3B4F
split-complementary
#99CF3B #3B4FCF #BB3BCF
monochromatic
#54731C #77A528 #99CF3B #B3DB6C #CCE79D

Accessibility & contrast

On white

1.85
#99CF3B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.34
#99CF3B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99CF3B
11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##99CF3B#FFFFFF#000000##000000
##99CF3B1.001.8511.3411.34
#FFFFFF1.851.0021.0021.00
#00000011.3421.001.001.00
##00000011.3421.001.001.00

Color blindness preview

Protanopia (red-blind)
#D9C120
Deuteranopia (green-blind)
#D2BD48
Tritanopia (blue-blind)
#9EC6B2
Achromatopsia (no color)
#BEBEBE

Design tokens & code

CSS
--color: #99cf3b;
/* rgb */ color: rgb(153, 207, 59);
/* oklch */ color: oklch(79.0% 0.182 127.7);
Tailwind
colors: {
  custom: {
    50: '#bbde7a',
    500: '#99cf3b',
    950: '#000000',
  },
}
SCSS
$custom: #99cf3b;
$custom-light: #bbde7a;
$custom-dark: #000000;
JSON
{
  "hex": "#99cf3b",
  "rgb": {
    "r": 153,
    "g": 207,
    "b": 59
  },
  "hsl": {
    "h": 81.892,
    "s": 60.656,
    "l": 52.157
  },
  "oklch": {
    "l": 0.78952,
    "c": 0.18152,
    "h": 127.7
  },
  "luminance": 0.51714
}

Semantic roles & 50–950 ramp

primary
#99CF3B
secondary
#4D327C
accent
#44E47E
background
#FDFEFB
surface
#F9FCF2
border
#D2D5CC
text
#12150A
muted
#82847D

Preview Lab

Preview with #99CF3B

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

Preview Lab → · Contrast checker → · Palette generator →

#99CF3B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva