#66EB59#66EB59

#66EB59 is a very light, highly saturated green. Relative luminance 0.630; OKLCH L 83.6% C 0.220 H 141.9°. Best body text is #000000 at 13.59:1 contrast (WCAG AA passes).

Color values

HEX	#66EB59
RGB	rgb(102, 235, 89)
HSL	hsl(115, 78%, 64%)
HSV	hsv(115, 62%, 92%)
CMYK	cmyk(56.6%, 0%, 62.1%, 7.8%)
CIE-LAB	lab(83.42, -63.49, 58.39)
CIE-LCH	lch(83.42, 86.26, 137.40°)
OKLab	oklab(83.59% -0.1731 0.1359)
OKLCH	oklch(83.59% 0.22 141.9)
XYZ	xyz(36.9891, 62.9595, 19.6524)
Luminance	0.6296 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EB59 #DE59EB

analogous

#AFEB59 #66EB59 #59EB95

triadic

#66EB59 #5966EB #EB5966

tetradic

#66EB59 #59AFEB #DE59EB #EB9559

square

#66EB59 #59AFEB #DE59EB #EB9559

split-complementary

#66EB59 #9559EB #EB59AF

monochromatic

#24B416 #34E422 #66EB59 #98F290 #CBF8C6

Accessibility & contrast

On white

1.54

#66EB59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.59

#66EB59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EB59

13.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EB59	#FFFFFF	#000000	##000000
##66EB59	1.00	1.54	13.59	13.59
#FFFFFF	1.54	1.00	21.00	21.00
#000000	13.59	21.00	1.00	1.00
##000000	13.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0D748

Deuteranopia (green-blind)

#DFCC65

Tritanopia (blue-blind)

#52E4CC

Achromatopsia (no color)

#D0D0D0

Design tokens & code

CSS

--color: #66eb59;
/* rgb */ color: rgb(102, 235, 89);
/* oklch */ color: oklch(83.6% 0.220 141.9);

Tailwind

colors: {
  custom: {
    50: '#9ef28d',
    500: '#66eb59',
    950: '#000000',
  },
}

SCSS

$custom: #66eb59;
$custom-light: #9ef28d;
$custom-dark: #000000;

JSON

{
  "hex": "#66eb59",
  "rgb": {
    "r": 102,
    "g": 235,
    "b": 89
  },
  "hsl": {
    "h": 114.658,
    "s": 78.495,
    "l": 63.529
  },
  "oklch": {
    "l": 0.83588,
    "c": 0.22012,
    "h": 141.9
  },
  "luminance": 0.62963
}

Semantic roles & 50–950 ramp

primary

#66EB59

secondary

#A934B4

accent

#0BDBC8

background

#FCFFFC

surface

#F6FEF4

border

#D0D6CE

text

#10170D

muted

#80857F

Preview Lab

Preview with #66EB59

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

Preview Lab → · Contrast checker → · Palette generator →