#A9E55B#A9E55B

#A9E55B is a very light, vivid yellow-green. Relative luminance 0.652; OKLCH L 85.4% C 0.179 H 129.4°. Best body text is #000000 at 14.05:1 contrast (WCAG AA passes).

Color values

HEX	#A9E55B
RGB	rgb(169, 229, 91)
HSL	hsl(86, 73%, 63%)
HSV	hsv(86, 60%, 90%)
CMYK	cmyk(26.2%, 0%, 60.3%, 10.2%)
CIE-LAB	lab(84.60, -40.30, 59.67)
CIE-LCH	lch(84.60, 72.00, 124.03°)
OKLab	oklab(85.35% -0.1135 0.1382)
OKLCH	oklch(85.35% 0.179 129.4)
XYZ	xyz(46.2695, 65.2279, 20.0480)
Luminance	0.6523 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A9E55B #975BE5

analogous

#E5DC5B #A9E55B #64E55B

triadic

#A9E55B #5BA9E5 #E55BA9

tetradic

#A9E55B #5BE5DC #975BE5 #E55B64

square

#A9E55B #5BE5DC #975BE5 #E55B64

split-complementary

#A9E55B #5B64E5 #DC5BE5

monochromatic

#6CAB1B #8DDD26 #A9E55B #C5ED90 #E0F6C5

Accessibility & contrast

On white

1.50

#A9E55B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.05

#A9E55B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A9E55B

14.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A9E55B	#FFFFFF	#000000	##000000
##A9E55B	1.00	1.50	14.05	14.05
#FFFFFF	1.50	1.00	21.00	21.00
#000000	14.05	21.00	1.00	1.00
##000000	14.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EFD64B

Deuteranopia (green-blind)

#E7D265

Tritanopia (blue-blind)

#ADDCC8

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #a9e55b;
/* rgb */ color: rgb(169, 229, 91);
/* oklch */ color: oklch(85.4% 0.179 129.4);

Tailwind

colors: {
  custom: {
    50: '#c6ed8e',
    500: '#a9e55b',
    950: '#000000',
  },
}

SCSS

$custom: #a9e55b;
$custom-light: #c6ed8e;
$custom-dark: #000000;

JSON

{
  "hex": "#a9e55b",
  "rgb": {
    "r": 169,
    "g": 229,
    "b": 91
  },
  "hsl": {
    "h": 86.087,
    "s": 72.632,
    "l": 62.745
  },
  "oklch": {
    "l": 0.8535,
    "c": 0.17884,
    "h": 129.4
  },
  "luminance": 0.65229
}

Semantic roles & 50–950 ramp

primary

#A9E55B

secondary

#6B38AC

accent

#11D566

background

#FEFFFC

surface

#FAFEF4

border

#D3D6CE

text

#13160D

muted

#83857F

Preview Lab

Preview with #A9E55B

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

Preview Lab → · Contrast checker → · Palette generator →