#57AC21#57AC21

#57AC21 is a light, vivid yellow-green. Relative luminance 0.316; OKLCH L 66.5% C 0.186 H 136.6°. Best body text is #000000 at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#57AC21
RGB	rgb(87, 172, 33)
HSL	hsl(97, 68%, 40%)
HSV	hsv(97, 81%, 67%)
CMYK	cmyk(49.4%, 0%, 80.8%, 32.5%)
CIE-LAB	lab(63.04, -48.57, 57.93)
CIE-LCH	lch(63.04, 75.60, 129.98°)
OKLab	oklab(66.53% -0.1352 0.1281)
OKLCH	oklch(66.53% 0.186 136.6)
XYZ	xyz(18.9570, 31.6398, 6.5467)
Luminance	0.3164 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57AC21 #7621AC

analogous

#9CAC21 #57AC21 #21AC31

triadic

#57AC21 #2157AC #AC2157

tetradic

#57AC21 #219CAC #7621AC #AC3121

square

#57AC21 #219CAC #7621AC #AC3121

split-complementary

#57AC21 #3121AC #AC219C

monochromatic

#23450D #3D7917 #57AC21 #73D832 #96E266

Accessibility & contrast

On white

2.87

#57AC21 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.33

#57AC21 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57AC21

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57AC21	#FFFFFF	#000000	##000000
##57AC21	1.00	2.87	7.33	7.33
#FFFFFF	2.87	1.00	21.00	21.00
#000000	7.33	21.00	1.00	1.00
##000000	7.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B29D00

Deuteranopia (green-blind)

#A79632

Tritanopia (blue-blind)

#52A593

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #57ac21;
/* rgb */ color: rgb(87, 172, 33);
/* oklch */ color: oklch(66.5% 0.186 136.6);

Tailwind

colors: {
  custom: {
    50: '#8fc569',
    500: '#57ac21',
    950: '#000000',
  },
}

SCSS

$custom: #57ac21;
$custom-light: #8fc569;
$custom-dark: #000000;

JSON

{
  "hex": "#57ac21",
  "rgb": {
    "r": 87,
    "g": 172,
    "b": 33
  },
  "hsl": {
    "h": 96.691,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.6653,
    "c": 0.18626,
    "h": 136.6
  },
  "luminance": 0.31641
}

Semantic roles & 50–950 ramp

primary

#57AC21

secondary

#A062C7

accent

#3DEBA7

background

#F9FCF6

surface

#F2F8EB

border

#CCD1C6

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #57AC21

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

Preview Lab → · Contrast checker → · Palette generator →