#ECFF56#ECFF56

#ECFF56 is a very light, vivid yellow. Relative luminance 0.900; OKLCH L 95.6% C 0.187 H 115.5°. Best body text is #000000 at 19.01:1 contrast (WCAG AA passes).

Color values

HEX	#ECFF56
RGB	rgb(236, 255, 86)
HSL	hsl(67, 100%, 67%)
HSV	hsv(67, 66%, 100%)
CMYK	cmyk(7.5%, 0%, 66.3%, 0%)
CIE-LAB	lab(96.01, -26.93, 75.08)
CIE-LCH	lch(96.01, 79.76, 109.73°)
OKLab	oklab(95.63% -0.0807 0.1688)
OKLCH	oklch(95.63% 0.187 115.5)
XYZ	xyz(72.0335, 90.0259, 22.3844)
Luminance	0.9002 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFF56 #6956FF

analogous

#FFBE56 #ECFF56 #97FF56

triadic

#ECFF56 #56ECFF #FF56EC

tetradic

#ECFF56 #56FFBE #6956FF #FF5697

square

#ECFF56 #56FFBE #6956FF #FF5697

split-complementary

#ECFF56 #5697FF #BE56FF

monochromatic

#C2DB00 #E5FF19 #ECFF56 #F3FF93 #FAFFD0

Accessibility & contrast

On white

1.10

#ECFF56 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.01

#ECFF56 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFF56

19.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFF56	#FFFFFF	#000000	##000000
##ECFF56	1.00	1.10	19.01	19.01
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.01	21.00	1.00	1.00
##000000	19.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF23D

Deuteranopia (green-blind)

#FFF562

Tritanopia (blue-blind)

#FAF1DD

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #ecff56;
/* rgb */ color: rgb(236, 255, 86);
/* oklch */ color: oklch(95.6% 0.187 115.5);

Tailwind

colors: {
  custom: {
    50: '#f6ff8e',
    500: '#ecff56',
    950: '#000000',
  },
}

SCSS

$custom: #ecff56;
$custom-light: #f6ff8e;
$custom-dark: #000000;

JSON

{
  "hex": "#ecff56",
  "rgb": {
    "r": 236,
    "g": 255,
    "b": 86
  },
  "hsl": {
    "h": 66.746,
    "s": 100,
    "l": 66.863
  },
  "oklch": {
    "l": 0.95633,
    "c": 0.18709,
    "h": 115.5
  },
  "luminance": 0.90025
}

Semantic roles & 50–950 ramp

primary

#ECFF56

secondary

#3925D4

accent

#00E61A

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #ECFF56

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

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