#66F998#66F998

#66F998 is a very light, vivid green. Relative luminance 0.728; OKLCH L 87.9% C 0.185 H 151.8°. Best body text is #000000 at 15.57:1 contrast (WCAG AA passes).

Color values

HEX	#66F998
RGB	rgb(102, 249, 152)
HSL	hsl(140, 92%, 69%)
HSV	hsv(140, 59%, 98%)
CMYK	cmyk(59%, 0%, 39%, 2.4%)
CIE-LAB	lab(88.37, -60.12, 35.07)
CIE-LCH	lch(88.37, 69.60, 149.74°)
OKLab	oklab(87.91% -0.1627 0.0872)
OKLCH	oklch(87.91% 0.185 151.8)
XYZ	xyz(45.0192, 72.8388, 41.3865)
Luminance	0.7284 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F998 #F966C7

analogous

#7EF966 #66F998 #66F9E2

triadic

#66F998 #9866F9 #F99866

tetradic

#66F998 #667EF9 #F966C7 #F9E266

square

#66F998 #667EF9 #F966C7 #F9E266

split-complementary

#66F998 #E266F9 #F9667E

monochromatic

#09DC51 #2BF770 #66F998 #A1FBC0 #DCFEE7

Accessibility & contrast

On white

1.35

#66F998 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.57

#66F998 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F998

15.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F998	#FFFFFF	#000000	##000000
##66F998	1.00	1.35	15.57	15.57
#FFFFFF	1.35	1.00	21.00	21.00
#000000	15.57	21.00	1.00	1.00
##000000	15.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FAE691

Deuteranopia (green-blind)

#E6D89E

Tritanopia (blue-blind)

#37F6E1

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #66f998;
/* rgb */ color: rgb(102, 249, 152);
/* oklch */ color: oklch(87.9% 0.185 151.8);

Tailwind

colors: {
  custom: {
    50: '#9efcb7',
    500: '#66f998',
    950: '#000000',
  },
}

SCSS

$custom: #66f998;
$custom-light: #9efcb7;
$custom-dark: #000000;

JSON

{
  "hex": "#66f998",
  "rgb": {
    "r": 102,
    "g": 249,
    "b": 152
  },
  "hsl": {
    "h": 140.408,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.87913,
    "c": 0.1846,
    "h": 151.8
  },
  "luminance": 0.72843
}

Semantic roles & 50–950 ramp

primary

#66F998

secondary

#D3309C

accent

#0097E6

background

#FCFFFD

surface

#F6FFF8

border

#D0D7D1

text

#101811

muted

#808681

Preview Lab

Preview with #66F998

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

Preview Lab → · Contrast checker → · Palette generator →