#C9EF55#C9EF55

#C9EF55 is a very light, vivid yellow-green. Relative luminance 0.748; OKLCH L 89.6% C 0.182 H 122.0°. Best body text is #000000 at 15.96:1 contrast (WCAG AA passes).

Color values

HEX#C9EF55
RGBrgb(201, 239, 85)
HSLhsl(75, 83%, 64%)
HSVhsv(75, 64%, 94%)
CMYKcmyk(15.9%, 0%, 64.4%, 6.3%)
CIE-LABlab(89.30, -33.24, 67.77)
CIE-LCHlch(89.30, 75.49, 116.13°)
OKLaboklab(89.64% -0.0964 0.1541)
OKLCHoklch(89.64% 0.182 122)
XYZxyz(56.5943, 74.8063, 20.0501)
Luminance0.7481 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#C9EF55 #7B55EF
analogous
#EFC855 #C9EF55 #7CEF55
triadic
#C9EF55 #55C9EF #EF55C9
tetradic
#C9EF55 #55EFC8 #7B55EF #EF557C
square
#C9EF55 #55EFC8 #7B55EF #EF557C
split-complementary
#C9EF55 #557CEF #C855EF
monochromatic
#8FB811 #B7EA1D #C9EF55 #DBF48D #EDFAC5

Accessibility & contrast

On white

1.32
#C9EF55 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

15.96
#C9EF55 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9EF55
15.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##C9EF55#FFFFFF#000000##000000
##C9EF551.001.3215.9615.96
#FFFFFF1.321.0021.0021.00
#00000015.9621.001.001.00
##00000015.9621.001.001.00

Color blindness preview

Protanopia (red-blind)
#FDE140
Deuteranopia (green-blind)
#F8E060
Tritanopia (blue-blind)
#D3E3CF
Achromatopsia (no color)
#E0E0E0

Design tokens & code

CSS
--color: #c9ef55;
/* rgb */ color: rgb(201, 239, 85);
/* oklch */ color: oklch(89.6% 0.182 122.0);
Tailwind
colors: {
  custom: {
    50: '#ddf48c',
    500: '#c9ef55',
    950: '#000000',
  },
}
SCSS
$custom: #c9ef55;
$custom-light: #ddf48c;
$custom-dark: #000000;
JSON
{
  "hex": "#c9ef55",
  "rgb": {
    "r": 201,
    "g": 239,
    "b": 85
  },
  "hsl": {
    "h": 74.805,
    "s": 82.796,
    "l": 63.529
  },
  "oklch": {
    "l": 0.89639,
    "c": 0.18173,
    "h": 122
  },
  "luminance": 0.74806
}

Semantic roles & 50–950 ramp

primary
#C9EF55
secondary
#5231B7
accent
#06DF3C
background
#FEFFFC
surface
#FCFEF4
border
#D5D6CE
text
#15170D
muted
#84857F

Preview Lab

Preview with #C9EF55

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

Preview Lab → · Contrast checker → · Palette generator →

#C9EF55 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva