#66E799#66E799

#66E799 is a very light, vivid green. Relative luminance 0.623; OKLCH L 83.6% C 0.160 H 154.3°. Best body text is #000000 at 13.46:1 contrast (WCAG AA passes).

Color values

HEX	#66E799
RGB	rgb(102, 231, 153)
HSL	hsl(144, 73%, 65%)
HSV	hsv(144, 56%, 91%)
CMYK	cmyk(55.8%, 0%, 33.8%, 9.4%)
CIE-LAB	lab(83.06, -52.90, 27.49)
CIE-LCH	lch(83.06, 59.62, 152.54°)
OKLab	oklab(83.56% -0.1438 0.0692)
OKLCH	oklch(83.56% 0.16 154.3)
XYZ	xyz(39.8020, 62.2729, 40.0532)
Luminance	0.6228 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E799 #E766B4

analogous

#73E766 #66E799 #66E7D9

triadic

#66E799 #9966E7 #E79966

tetradic

#66E799 #6673E7 #E766B4 #E7D966

square

#66E799 #6673E7 #E766B4 #E7D966

split-complementary

#66E799 #D966E7 #E76673

monochromatic

#1DB659 #31DF76 #66E799 #9BEFBC #D0F8E0

Accessibility & contrast

On white

1.56

#66E799 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.46

#66E799 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E799

13.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E799	#FFFFFF	#000000	##000000
##66E799	1.00	1.56	13.46	13.46
#FFFFFF	1.56	1.00	21.00	21.00
#000000	13.46	21.00	1.00	1.00
##000000	13.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E7D694

Deuteranopia (green-blind)

#D5CA9E

Tritanopia (blue-blind)

#3EE5D3

Achromatopsia (no color)

#CFCFCF

Design tokens & code

CSS

--color: #66e799;
/* rgb */ color: rgb(102, 231, 153);
/* oklch */ color: oklch(83.6% 0.160 154.3);

Tailwind

colors: {
  custom: {
    50: '#9befb7',
    500: '#66e799',
    950: '#000000',
  },
}

SCSS

$custom: #66e799;
$custom-light: #9befb7;
$custom-dark: #000000;

JSON

{
  "hex": "#66e799",
  "rgb": {
    "r": 102,
    "g": 231,
    "b": 153
  },
  "hsl": {
    "h": 143.721,
    "s": 72.881,
    "l": 65.294
  },
  "oklch": {
    "l": 0.83562,
    "c": 0.15954,
    "h": 154.3
  },
  "luminance": 0.62277
}

Semantic roles & 50–950 ramp

primary

#66E799

secondary

#B63B85

accent

#1187D5

background

#FCFFFD

surface

#F5FEF8

border

#CFD6D1

text

#0F1611

muted

#808581

Preview Lab

Preview with #66E799

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

Preview Lab → · Contrast checker → · Palette generator →