#A9D21B#A9D21B

#A9D21B is a light, vivid yellow-green. Relative luminance 0.546; OKLCH L 80.5% C 0.192 H 122.9°. Best body text is #000000 at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#A9D21B
RGB	rgb(169, 210, 27)
HSL	hsl(73, 77%, 46%)
HSV	hsv(73, 87%, 82%)
CMYK	cmyk(19.5%, 0%, 87.1%, 17.6%)
CIE-LAB	lab(78.81, -35.22, 74.80)
CIE-LCH	lch(78.81, 82.67, 115.21°)
OKLab	oklab(80.54% -0.1043 0.161)
OKLCH	oklch(80.54% 0.192 122.9)
XYZ	xyz(39.6072, 54.6071, 9.4903)
Luminance	0.5461 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A9D21B #441BD2

analogous

#D2A01B #A9D21B #4DD21B

triadic

#A9D21B #1BA9D2 #D21BA9

tetradic

#A9D21B #1BD2A0 #441BD2 #D21B4D

square

#A9D21B #1BD2A0 #441BD2 #D21B4D

split-complementary

#A9D21B #1B4DD2 #A01BD2

monochromatic

#52660D #7D9C14 #A9D21B #C2E743 #D4EE7A

Accessibility & contrast

On white

1.76

#A9D21B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.92

#A9D21B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A9D21B

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A9D21B	#FFFFFF	#000000	##000000
##A9D21B	1.00	1.76	11.92	11.92
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.92	21.00	1.00	1.00
##000000	11.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC400

Deuteranopia (green-blind)

#DAC333

Tritanopia (blue-blind)

#B2C7B3

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #a9d21b;
/* rgb */ color: rgb(169, 210, 27);
/* oklch */ color: oklch(80.5% 0.192 122.9);

Tailwind

colors: {
  custom: {
    50: '#c7df6e',
    500: '#a9d21b',
    950: '#000000',
  },
}

SCSS

$custom: #a9d21b;
$custom-light: #c7df6e;
$custom-dark: #000000;

JSON

{
  "hex": "#a9d21b",
  "rgb": {
    "r": 169,
    "g": 210,
    "b": 27
  },
  "hsl": {
    "h": 73.443,
    "s": 77.215,
    "l": 46.471
  },
  "oklch": {
    "l": 0.80544,
    "c": 0.19183,
    "h": 122.9
  },
  "luminance": 0.54607
}

Semantic roles & 50–950 ramp

primary

#A9D21B

secondary

#332170

accent

#34F45F

background

#FEFEFB

surface

#FBFCF1

border

#D4D5CB

text

#141508

muted

#83847D

Preview Lab

Preview with #A9D21B

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

Preview Lab → · Contrast checker → · Palette generator →