#ECF778#ECF778

#ECF778 is a very light, vivid yellow. Relative luminance 0.857; OKLCH L 94.3% C 0.151 H 113.4°. Best body text is #000000 at 18.14:1 contrast (WCAG AA passes).

Color values

HEX	#ECF778
RGB	rgb(236, 247, 120)
HSL	hsl(65, 89%, 72%)
HSV	hsv(65, 51%, 97%)
CMYK	cmyk(4.5%, 0%, 51.4%, 3.1%)
CIE-LAB	lab(94.19, -20.76, 59.04)
CIE-LCH	lch(94.19, 62.58, 109.37°)
OKLab	oklab(94.27% -0.06 0.1388)
OKLCH	oklch(94.27% 0.151 113.4)
XYZ	xyz(71.2443, 85.7117, 30.5566)
Luminance	0.8571 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF778 #8378F7

analogous

#F7C378 #ECF778 #ADF778

triadic

#ECF778 #78ECF7 #F778EC

tetradic

#ECF778 #78F7C3 #8378F7 #F778AD

square

#ECF778 #78F7C3 #8378F7 #F778AD

split-complementary

#ECF778 #78ADF7 #C378F7

monochromatic

#D4E70E #E4F43E #ECF778 #F4FAB2 #FBFDE2

Accessibility & contrast

On white

1.16

#ECF778 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.14

#ECF778 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF778

18.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF778	#FFFFFF	#000000	##000000
##ECF778	1.00	1.16	18.14	18.14
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.14	21.00	1.00	1.00
##000000	18.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED6C

Deuteranopia (green-blind)

#FFF07F

Tritanopia (blue-blind)

#F9EBDA

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf778;
/* rgb */ color: rgb(236, 247, 120);
/* oklch */ color: oklch(94.3% 0.151 113.4);

Tailwind

colors: {
  custom: {
    50: '#f4f9a2',
    500: '#ecf778',
    950: '#000000',
  },
}

SCSS

$custom: #ecf778;
$custom-light: #f4f9a2;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf778",
  "rgb": {
    "r": 236,
    "g": 247,
    "b": 120
  },
  "hsl": {
    "h": 65.197,
    "s": 88.811,
    "l": 71.961
  },
  "oklch": {
    "l": 0.9427,
    "c": 0.15123,
    "h": 113.4
  },
  "luminance": 0.8571
}

Semantic roles & 50–950 ramp

primary

#ECF778

secondary

#4D41D3

accent

#00E514

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF778

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

Preview Lab → · Contrast checker → · Palette generator →