#CEF166#CEF166

#CEF166 is a very light, vivid yellow-green. Relative luminance 0.770; OKLCH L 90.6% C 0.169 H 121.7°. Best body text is #000000 at 16.40:1 contrast (WCAG AA passes).

Color values

HEX	#CEF166
RGB	rgb(206, 241, 102)
HSL	hsl(75, 83%, 67%)
HSV	hsv(75, 58%, 95%)
CMYK	cmyk(14.5%, 0%, 57.7%, 5.5%)
CIE-LAB	lab(90.32, -31.00, 61.99)
CIE-LCH	lch(90.32, 69.31, 116.57°)
OKLab	oklab(90.59% -0.0889 0.1438)
OKLCH	oklch(90.59% 0.169 121.7)
XYZ	xyz(59.3077, 76.9917, 24.3042)
Luminance	0.7699 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CEF166 #8966F1

analogous

#F1CF66 #CEF166 #88F166

triadic

#CEF166 #66CEF1 #F166CE

tetradic

#CEF166 #66F1CF #8966F1 #F16688

square

#CEF166 #66F1CF #8966F1 #F16688

split-complementary

#CEF166 #6688F1 #CF66F1

monochromatic

#9CCA12 #BCEC2E #CEF166 #E0F69E #F2FBD6

Accessibility & contrast

On white

1.28

#CEF166 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.40

#CEF166 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #CEF166

16.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CEF166	#FFFFFF	#000000	##000000
##CEF166	1.00	1.28	16.40	16.40
#FFFFFF	1.28	1.00	21.00	21.00
#000000	16.40	21.00	1.00	1.00
##000000	16.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FEE457

Deuteranopia (green-blind)

#FAE36F

Tritanopia (blue-blind)

#D8E6D3

Achromatopsia (no color)

#E3E3E3

Design tokens & code

CSS

--color: #cef166;
/* rgb */ color: rgb(206, 241, 102);
/* oklch */ color: oklch(90.6% 0.169 121.7);

Tailwind

colors: {
  custom: {
    50: '#e0f596',
    500: '#cef166',
    950: '#000000',
  },
}

SCSS

$custom: #cef166;
$custom-light: #e0f596;
$custom-dark: #000000;

JSON

{
  "hex": "#cef166",
  "rgb": {
    "r": 206,
    "g": 241,
    "b": 102
  },
  "hsl": {
    "h": 75.108,
    "s": 83.234,
    "l": 67.255
  },
  "oklch": {
    "l": 0.90585,
    "c": 0.16903,
    "h": 121.7
  },
  "luminance": 0.76992
}

Semantic roles & 50–950 ramp

primary

#CEF166

secondary

#5934C7

accent

#06E03D

background

#FEFFFC

surface

#FCFEF5

border

#D5D6CF

text

#16170E

muted

#84857F

Preview Lab

Preview with #CEF166

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

Preview Lab → · Contrast checker → · Palette generator →