#66E58B#66E58B

#66E58B is a very light, vivid green. Relative luminance 0.607; OKLCH L 82.8% C 0.170 H 150.6°. Best body text is #000000 at 13.15:1 contrast (WCAG AA passes).

Color values

HEX	#66E58B
RGB	rgb(102, 229, 139)
HSL	hsl(137, 71%, 65%)
HSV	hsv(137, 55%, 90%)
CMYK	cmyk(55.5%, 0%, 39.3%, 10.2%)
CIE-LAB	lab(82.23, -54.56, 33.50)
CIE-LCH	lch(82.23, 64.02, 148.45°)
OKLab	oklab(82.81% -0.1478 0.0832)
OKLCH	oklch(82.81% 0.17 150.6)
XYZ	xyz(38.1563, 60.7241, 34.1313)
Luminance	0.6073 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E58B #E566C0

analogous

#81E566 #66E58B #66E5CA

triadic

#66E58B #8B66E5 #E58B66

tetradic

#66E58B #6681E5 #E566C0 #E5CA66

square

#66E58B #6681E5 #E566C0 #E5CA66

split-complementary

#66E58B #CA66E5 #E56681

monochromatic

#1EB249 #32DC63 #66E58B #9AEEB3 #CFF7DA

Accessibility & contrast

On white

1.60

#66E58B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.15

#66E58B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E58B

13.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E58B	#FFFFFF	#000000	##000000
##66E58B	1.00	1.60	13.15	13.15
#FFFFFF	1.60	1.00	21.00	21.00
#000000	13.15	21.00	1.00	1.00
##000000	13.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E6D485

Deuteranopia (green-blind)

#D5C891

Tritanopia (blue-blind)

#46E2CF

Achromatopsia (no color)

#CDCDCD

Design tokens & code

CSS

--color: #66e58b;
/* rgb */ color: rgb(102, 229, 139);
/* oklch */ color: oklch(82.8% 0.170 150.6);

Tailwind

colors: {
  custom: {
    50: '#9beead',
    500: '#66e58b',
    950: '#000000',
  },
}

SCSS

$custom: #66e58b;
$custom-light: #9beead;
$custom-dark: #000000;

JSON

{
  "hex": "#66e58b",
  "rgb": {
    "r": 102,
    "g": 229,
    "b": 139
  },
  "hsl": {
    "h": 137.48,
    "s": 70.95,
    "l": 64.902
  },
  "oklch": {
    "l": 0.82807,
    "c": 0.16963,
    "h": 150.6
  },
  "luminance": 0.60727
}

Semantic roles & 50–950 ramp

primary

#66E58B

secondary

#B33C90

accent

#139BD3

background

#FCFFFD

surface

#F5FEF7

border

#CFD6D0

text

#0F1610

muted

#808581

Preview Lab

Preview with #66E58B

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

Preview Lab → · Contrast checker → · Palette generator →