#ACE55A#ACE55A

#ACE55A is a very light, vivid yellow-green. Relative luminance 0.655; OKLCH L 85.5% C 0.178 H 128.5°. Best body text is #000000 at 14.11:1 contrast (WCAG AA passes).

Color values

HEX	#ACE55A
RGB	rgb(172, 229, 90)
HSL	hsl(85, 73%, 63%)
HSV	hsv(85, 61%, 90%)
CMYK	cmyk(24.9%, 0%, 60.7%, 10.2%)
CIE-LAB	lab(84.76, -39.29, 60.32)
CIE-LCH	lch(84.76, 71.99, 123.07°)
OKLab	oklab(85.52% -0.111 0.1394)
OKLCH	oklch(85.52% 0.178 128.5)
XYZ	xyz(46.8778, 65.5465, 19.8528)
Luminance	0.6555 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ACE55A #935AE5

analogous

#E5D85A #ACE55A #67E55A

triadic

#ACE55A #5AACE5 #E55AAC

tetradic

#ACE55A #5AE5D8 #935AE5 #E55A67

square

#ACE55A #5AE5D8 #935AE5 #E55A67

split-complementary

#ACE55A #5A67E5 #D85AE5

monochromatic

#6FAA1B #91DD25 #ACE55A #C7ED8F #E1F6C4

Accessibility & contrast

On white

1.49

#ACE55A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.11

#ACE55A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ACE55A

14.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ACE55A	#FFFFFF	#000000	##000000
##ACE55A	1.00	1.49	14.11	14.11
#FFFFFF	1.49	1.00	21.00	21.00
#000000	14.11	21.00	1.00	1.00
##000000	14.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EFD64A

Deuteranopia (green-blind)

#E7D264

Tritanopia (blue-blind)

#B1DCC8

Achromatopsia (no color)

#D4D4D4

Design tokens & code

CSS

--color: #ace55a;
/* rgb */ color: rgb(172, 229, 90);
/* oklch */ color: oklch(85.5% 0.178 128.5);

Tailwind

colors: {
  custom: {
    50: '#c8ed8e',
    500: '#ace55a',
    950: '#000000',
  },
}

SCSS

$custom: #ace55a;
$custom-light: #c8ed8e;
$custom-dark: #000000;

JSON

{
  "hex": "#ace55a",
  "rgb": {
    "r": 172,
    "g": 229,
    "b": 90
  },
  "hsl": {
    "h": 84.604,
    "s": 72.775,
    "l": 62.549
  },
  "oklch": {
    "l": 0.85524,
    "c": 0.1782,
    "h": 128.5
  },
  "luminance": 0.65547
}

Semantic roles & 50–950 ramp

primary

#ACE55A

secondary

#6738AB

accent

#11D561

background

#FEFFFC

surface

#FAFEF4

border

#D3D6CE

text

#13160D

muted

#83857F

Preview Lab

Preview with #ACE55A

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

Preview Lab → · Contrast checker → · Palette generator →