#A9DD51#A9DD51

#A9DD51 is a very light, vivid yellow-green. Relative luminance 0.607; OKLCH L 83.4% C 0.176 H 127.2°. Best body text is #000000 at 13.15:1 contrast (WCAG AA passes).

Color values

HEX	#A9DD51
RGB	rgb(169, 221, 81)
HSL	hsl(82, 67%, 59%)
HSV	hsv(82, 63%, 87%)
CMYK	cmyk(23.5%, 0%, 63.3%, 13.3%)
CIE-LAB	lab(82.24, -37.53, 61.25)
CIE-LCH	lch(82.24, 71.83, 121.49°)
OKLab	oklab(83.41% -0.1067 0.1404)
OKLCH	oklch(83.41% 0.176 127.2)
XYZ	xyz(43.7038, 60.7412, 17.2047)
Luminance	0.6074 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A9DD51 #8551DD

analogous

#DDCB51 #A9DD51 #63DD51

triadic

#A9DD51 #51A9DD #DD51A9

tetradic

#A9DD51 #51DDCB #8551DD #DD5163

square

#A9DD51 #51DDCB #8551DD #DD5163

split-complementary

#A9DD51 #5163DD #CB51DD

monochromatic

#69961D #8DC927 #A9DD51 #C2E784 #DCF1B7

Accessibility & contrast

On white

1.60

#A9DD51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.15

#A9DD51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A9DD51

13.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A9DD51	#FFFFFF	#000000	##000000
##A9DD51	1.00	1.60	13.15	13.15
#FFFFFF	1.60	1.00	21.00	21.00
#000000	13.15	21.00	1.00	1.00
##000000	13.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E8CF3F

Deuteranopia (green-blind)

#E1CC5C

Tritanopia (blue-blind)

#AFD3C0

Achromatopsia (no color)

#CDCDCD

Design tokens & code

CSS

--color: #a9dd51;
/* rgb */ color: rgb(169, 221, 81);
/* oklch */ color: oklch(83.4% 0.176 127.2);

Tailwind

colors: {
  custom: {
    50: '#c6e788',
    500: '#a9dd51',
    950: '#000000',
  },
}

SCSS

$custom: #a9dd51;
$custom-light: #c6e788;
$custom-dark: #000000;

JSON

{
  "hex": "#a9dd51",
  "rgb": {
    "r": 169,
    "g": 221,
    "b": 81
  },
  "hsl": {
    "h": 82.286,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.83409,
    "c": 0.17634,
    "h": 127.2
  },
  "luminance": 0.60742
}

Semantic roles & 50–950 ramp

primary

#A9DD51

secondary

#5C389B

accent

#3EEA7E

background

#FEFEFC

surface

#FAFCF4

border

#D3D5CE

text

#13160C

muted

#83847F

Preview Lab

Preview with #A9DD51

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

Preview Lab → · Contrast checker → · Palette generator →