#ACFF51#ACFF51

#ACFF51 is a very light, highly saturated yellow-green. Relative luminance 0.809; OKLCH L 91.4% C 0.217 H 131.6°. Best body text is #000000 at 17.18:1 contrast (WCAG AA passes).

Color values

HEX	#ACFF51
RGB	rgb(172, 255, 81)
HSL	hsl(89, 100%, 66%)
HSV	hsv(89, 68%, 100%)
CMYK	cmyk(32.5%, 0%, 68.2%, 0%)
CIE-LAB	lab(92.08, -51.09, 71.65)
CIE-LCH	lch(92.08, 88.00, 125.49°)
OKLab	oklab(91.45% -0.144 0.1622)
OKLCH	oklch(91.45% 0.217 131.6)
XYZ	xyz(54.2579, 80.8828, 20.5362)
Luminance	0.8088 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ACFF51 #A451FF

analogous

#FFFB51 #ACFF51 #55FF51

triadic

#ACFF51 #51ACFF #FF51AC

tetradic

#ACFF51 #51FFFB #A451FF #FF5155

square

#ACFF51 #51FFFB #A451FF #FF5155

split-complementary

#ACFF51 #5155FF #FB51FF

monochromatic

#70D600 #8FFF14 #ACFF51 #C9FF8E #E6FFCB

Accessibility & contrast

On white

1.22

#ACFF51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.18

#ACFF51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ACFF51

17.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ACFF51	#FFFFFF	#000000	##000000
##ACFF51	1.00	1.22	17.18	17.18
#FFFFFF	1.22	1.00	21.00	21.00
#000000	17.18	21.00	1.00	1.00
##000000	17.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC36

Deuteranopia (green-blind)

#FEE660

Tritanopia (blue-blind)

#AFF5DC

Achromatopsia (no color)

#E8E8E8

Design tokens & code

CSS

--color: #acff51;
/* rgb */ color: rgb(172, 255, 81);
/* oklch */ color: oklch(91.4% 0.217 131.6);

Tailwind

colors: {
  custom: {
    50: '#caff8b',
    500: '#acff51',
    950: '#000000',
  },
}

SCSS

$custom: #acff51;
$custom-light: #caff8b;
$custom-dark: #000000;

JSON

{
  "hex": "#acff51",
  "rgb": {
    "r": 172,
    "g": 255,
    "b": 81
  },
  "hsl": {
    "h": 88.621,
    "s": 100,
    "l": 65.882
  },
  "oklch": {
    "l": 0.91447,
    "c": 0.21692,
    "h": 131.6
  },
  "luminance": 0.80885
}

Semantic roles & 50–950 ramp

primary

#ACFF51

secondary

#7625D0

accent

#00E66D

background

#FEFFFC

surface

#FBFFF4

border

#D4D7CE

text

#14180D

muted

#83867F

Preview Lab

Preview with #ACFF51

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

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