#66F978#66F978

#66F978 is a very light, highly saturated green. Relative luminance 0.719; OKLCH L 87.4% C 0.213 H 145.7°. Best body text is #000000 at 15.39:1 contrast (WCAG AA passes).

Color values

HEX	#66F978
RGB	rgb(102, 249, 120)
HSL	hsl(127, 92%, 69%)
HSV	hsv(127, 59%, 98%)
CMYK	cmyk(59%, 0%, 51.8%, 2.4%)
CIE-LAB	lab(87.93, -64.92, 49.93)
CIE-LCH	lch(87.93, 81.90, 142.44°)
OKLab	oklab(87.41% -0.1757 0.12)
OKLCH	oklch(87.41% 0.213 145.7)
XYZ	xyz(42.7426, 71.9282, 29.3967)
Luminance	0.7193 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F978 #F966E7

analogous

#9EF966 #66F978 #66F9C2

triadic

#66F978 #7866F9 #F97866

tetradic

#66F978 #669EF9 #F966E7 #F9C266

square

#66F978 #669EF9 #F966E7 #F9C266

split-complementary

#66F978 #C266F9 #F9669E

monochromatic

#09DC23 #2BF744 #66F978 #A1FBAC #DCFEE0

Accessibility & contrast

On white

1.36

#66F978 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.39

#66F978 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F978

15.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F978	#FFFFFF	#000000	##000000
##66F978	1.00	1.36	15.39	15.39
#FFFFFF	1.36	1.00	21.00	21.00
#000000	15.39	21.00	1.00	1.00
##000000	15.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FDE46D

Deuteranopia (green-blind)

#EAD881

Tritanopia (blue-blind)

#46F3DC

Achromatopsia (no color)

#DCDCDC

Design tokens & code

CSS

--color: #66f978;
/* rgb */ color: rgb(102, 249, 120);
/* oklch */ color: oklch(87.4% 0.213 145.7);

Tailwind

colors: {
  custom: {
    50: '#9ffca1',
    500: '#66f978',
    950: '#000000',
  },
}

SCSS

$custom: #66f978;
$custom-light: #9ffca1;
$custom-dark: #000000;

JSON

{
  "hex": "#66f978",
  "rgb": {
    "r": 102,
    "g": 249,
    "b": 120
  },
  "hsl": {
    "h": 127.347,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.87411,
    "c": 0.21277,
    "h": 145.7
  },
  "luminance": 0.71932
}

Semantic roles & 50–950 ramp

primary

#66F978

secondary

#D330BF

accent

#00C9E6

background

#FDFFFC

surface

#F7FFF5

border

#D0D7CF

text

#10180F

muted

#818680

Preview Lab

Preview with #66F978

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

Preview Lab → · Contrast checker → · Palette generator →