#ECFF78#ECFF78

#ECFF78 is a very light, vivid yellow. Relative luminance 0.907; OKLCH L 96.0% C 0.161 H 116.2°. Best body text is #000000 at 19.14:1 contrast (WCAG AA passes).

Color values

HEX	#ECFF78
RGB	rgb(236, 255, 120)
HSL	hsl(68, 100%, 74%)
HSV	hsv(68, 53%, 100%)
CMYK	cmyk(7.5%, 0%, 52.9%, 0%)
CIE-LAB	lab(96.29, -24.57, 61.48)
CIE-LCH	lch(96.29, 66.21, 111.78°)
OKLab	oklab(95.95% -0.0708 0.1441)
OKLCH	oklch(95.95% 0.161 116.2)
XYZ	xyz(73.7434, 90.7098, 31.3896)
Luminance	0.9071 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFF78 #8B78FF

analogous

#FFCE78 #ECFF78 #A8FF78

triadic

#ECFF78 #78ECFF #FF78EC

tetradic

#ECFF78 #78FFCE #8B78FF #FF78A8

square

#ECFF78 #78FFCE #8B78FF #FF78A8

split-complementary

#ECFF78 #78A8FF #CE78FF

monochromatic

#D9FD00 #E3FF3B #ECFF78 #F5FFB5 #FBFFE0

Accessibility & contrast

On white

1.10

#ECFF78 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.14

#ECFF78 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFF78

19.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFF78	#FFFFFF	#000000	##000000
##ECFF78	1.00	1.10	19.14	19.14
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.14	21.00	1.00	1.00
##000000	19.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF46B

Deuteranopia (green-blind)

#FFF580

Tritanopia (blue-blind)

#F8F3E1

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #ecff78;
/* rgb */ color: rgb(236, 255, 120);
/* oklch */ color: oklch(96.0% 0.161 116.2);

Tailwind

colors: {
  custom: {
    50: '#f4ffa3',
    500: '#ecff78',
    950: '#000000',
  },
}

SCSS

$custom: #ecff78;
$custom-light: #f4ffa3;
$custom-dark: #000000;

JSON

{
  "hex": "#ecff78",
  "rgb": {
    "r": 236,
    "g": 255,
    "b": 120
  },
  "hsl": {
    "h": 68.444,
    "s": 100,
    "l": 73.529
  },
  "oklch": {
    "l": 0.95951,
    "c": 0.16055,
    "h": 116.2
  },
  "luminance": 0.90709
}

Semantic roles & 50–950 ramp

primary

#ECFF78

secondary

#553EDD

accent

#00E620

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17180F

muted

#858680

Preview Lab

Preview with #ECFF78

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

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