#CEFF66#CEFF66

#CEFF66 is a very light, vivid yellow-green. Relative luminance 0.856; OKLCH L 93.7% C 0.186 H 124.9°. Best body text is #000000 at 18.12:1 contrast (WCAG AA passes).

Color values

HEX	#CEFF66
RGB	rgb(206, 255, 102)
HSL	hsl(79, 100%, 70%)
HSV	hsv(79, 60%, 100%)
CMYK	cmyk(19.2%, 0%, 60%, 0%)
CIE-LAB	lab(94.14, -37.39, 66.24)
CIE-LCH	lch(94.14, 76.06, 119.44°)
OKLab	oklab(93.67% -0.1066 0.1528)
OKLCH	oklch(93.67% 0.186 124.9)
XYZ	xyz(63.6121, 85.6005, 25.7390)
Luminance	0.8560 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CEFF66 #9766FF

analogous

#FFE466 #CEFF66 #81FF66

triadic

#CEFF66 #66CEFF #FF66CE

tetradic

#CEFF66 #66FFE4 #9766FF #FF6681

square

#CEFF66 #66FFE4 #9766FF #FF6681

split-complementary

#CEFF66 #6681FF #E466FF

monochromatic

#9FEB00 #BAFF29 #CEFF66 #E2FFA3 #F5FFE0

Accessibility & contrast

On white

1.16

#CEFF66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.12

#CEFF66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #CEFF66

18.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CEFF66	#FFFFFF	#000000	##000000
##CEFF66	1.00	1.16	18.12	18.12
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.12	21.00	1.00	1.00
##000000	18.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF054

Deuteranopia (green-blind)

#FFEE71

Tritanopia (blue-blind)

#D6F4DF

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ceff66;
/* rgb */ color: rgb(206, 255, 102);
/* oklch */ color: oklch(93.7% 0.186 124.9);

Tailwind

colors: {
  custom: {
    50: '#e0ff97',
    500: '#ceff66',
    950: '#000000',
  },
}

SCSS

$custom: #ceff66;
$custom-light: #e0ff97;
$custom-dark: #000000;

JSON

{
  "hex": "#ceff66",
  "rgb": {
    "r": 206,
    "g": 255,
    "b": 102
  },
  "hsl": {
    "h": 79.216,
    "s": 100,
    "l": 70
  },
  "oklch": {
    "l": 0.93668,
    "c": 0.18636,
    "h": 124.9
  },
  "luminance": 0.85601
}

Semantic roles & 50–950 ramp

primary

#CEFF66

secondary

#662FDA

accent

#00E64A

background

#FEFFFC

surface

#FCFFF5

border

#D5D7CF

text

#16180E

muted

#84867F

Preview Lab

Preview with #CEFF66

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

Preview Lab → · Contrast checker → · Palette generator →