#ACE557#ACE557

#ACE557 is a very light, vivid yellow-green. Relative luminance 0.655; OKLCH L 85.5% C 0.181 H 128.3°. Best body text is #000000 at 14.10:1 contrast (WCAG AA passes).

Color values

HEX	#ACE557
RGB	rgb(172, 229, 87)
HSL	hsl(84, 73%, 62%)
HSV	hsv(84, 62%, 90%)
CMYK	cmyk(24.9%, 0%, 62%, 10.2%)
CIE-LAB	lab(84.74, -39.53, 61.55)
CIE-LCH	lch(84.74, 73.15, 122.71°)
OKLab	oklab(85.5% -0.1119 0.1417)
OKLCH	oklch(85.5% 0.181 128.3)
XYZ	xyz(46.7527, 65.4964, 19.1939)
Luminance	0.6550 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ACE557 #9057E5

analogous

#E5D757 #ACE557 #65E557

triadic

#ACE557 #57ACE5 #E557AC

tetradic

#ACE557 #57E5D7 #9057E5 #E55765

square

#ACE557 #57E5D7 #9057E5 #E55765

split-complementary

#ACE557 #5765E5 #D757E5

monochromatic

#6FA81A #92DD22 #ACE557 #C6ED8C #E0F5C1

Accessibility & contrast

On white

1.49

#ACE557 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.10

#ACE557 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ACE557

14.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ACE557	#FFFFFF	#000000	##000000
##ACE557	1.00	1.49	14.10	14.10
#FFFFFF	1.49	1.00	21.00	21.00
#000000	14.10	21.00	1.00	1.00
##000000	14.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0D646

Deuteranopia (green-blind)

#E8D262

Tritanopia (blue-blind)

#B1DBC7

Achromatopsia (no color)

#D4D4D4

Design tokens & code

CSS

--color: #ace557;
/* rgb */ color: rgb(172, 229, 87);
/* oklch */ color: oklch(85.5% 0.181 128.3);

Tailwind

colors: {
  custom: {
    50: '#c8ed8c',
    500: '#ace557',
    950: '#000000',
  },
}

SCSS

$custom: #ace557;
$custom-light: #c8ed8c;
$custom-dark: #000000;

JSON

{
  "hex": "#ace557",
  "rgb": {
    "r": 172,
    "g": 229,
    "b": 87
  },
  "hsl": {
    "h": 84.085,
    "s": 73.196,
    "l": 61.961
  },
  "oklch": {
    "l": 0.85495,
    "c": 0.18054,
    "h": 128.3
  },
  "luminance": 0.65497
}

Semantic roles & 50–950 ramp

primary

#ACE557

secondary

#6537AA

accent

#10D55F

background

#FEFFFC

surface

#FBFEF4

border

#D4D6CE

text

#13160C

muted

#83857F

Preview Lab

Preview with #ACE557

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

Preview Lab → · Contrast checker → · Palette generator →