#ECFF6F#ECFF6F

#ECFF6F is a very light, vivid yellow. Relative luminance 0.905; OKLCH L 95.9% C 0.168 H 116.0°. Best body text is #000000 at 19.10:1 contrast (WCAG AA passes).

Color values

HEX	#ECFF6F
RGB	rgb(236, 255, 111)
HSL	hsl(68, 100%, 72%)
HSV	hsv(68, 56%, 100%)
CMYK	cmyk(7.5%, 0%, 56.5%, 0%)
CIE-LAB	lab(96.20, -25.28, 65.30)
CIE-LCH	lch(96.20, 70.02, 111.16°)
OKLab	oklab(95.85% -0.0737 0.1514)
OKLCH	oklch(95.85% 0.168 116)
XYZ	xyz(73.2227, 90.5015, 28.6470)
Luminance	0.9050 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFF6F #826FFF

analogous

#FFCA6F #ECFF6F #A4FF6F

triadic

#ECFF6F #6FECFF #FF6FEC

tetradic

#ECFF6F #6FFFCA #826FFF #FF6FA4

square

#ECFF6F #6FFFCA #826FFF #FF6FA4

split-complementary

#ECFF6F #6FA4FF #CA6FFF

monochromatic

#D3F400 #E4FF32 #ECFF6F #F4FFAC #FBFFE0

Accessibility & contrast

On white

1.10

#ECFF6F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.10

#ECFF6F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFF6F

19.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFF6F	#FFFFFF	#000000	##000000
##ECFF6F	1.00	1.10	19.10	19.10
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.10	21.00	1.00	1.00
##000000	19.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF360

Deuteranopia (green-blind)

#FFF578

Tritanopia (blue-blind)

#F9F2E0

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #ecff6f;
/* rgb */ color: rgb(236, 255, 111);
/* oklch */ color: oklch(95.9% 0.168 116.0);

Tailwind

colors: {
  custom: {
    50: '#f5ff9d',
    500: '#ecff6f',
    950: '#000000',
  },
}

SCSS

$custom: #ecff6f;
$custom-light: #f5ff9d;
$custom-dark: #000000;

JSON

{
  "hex": "#ecff6f",
  "rgb": {
    "r": 236,
    "g": 255,
    "b": 111
  },
  "hsl": {
    "h": 67.917,
    "s": 100,
    "l": 71.765
  },
  "oklch": {
    "l": 0.95854,
    "c": 0.16834,
    "h": 116
  },
  "luminance": 0.90501
}

Semantic roles & 50–950 ramp

primary

#ECFF6F

secondary

#4C37DC

accent

#00E61E

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #ECFF6F

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

Preview Lab → · Contrast checker → · Palette generator →