#ECF678#ECF678

#ECF678 is a very light, vivid yellow. Relative luminance 0.851; OKLCH L 94.1% C 0.150 H 113.0°. Best body text is #000000 at 18.02:1 contrast (WCAG AA passes).

Color values

HEX	#ECF678
RGB	rgb(236, 246, 120)
HSL	hsl(65, 88%, 72%)
HSV	hsv(65, 51%, 96%)
CMYK	cmyk(4.1%, 0%, 51.2%, 3.5%)
CIE-LAB	lab(93.93, -20.28, 58.73)
CIE-LCH	lch(93.93, 62.13, 109.05°)
OKLab	oklab(94.06% -0.0587 0.1381)
OKLCH	oklch(94.06% 0.15 113)
XYZ	xyz(70.9394, 85.1017, 30.4549)
Luminance	0.8510 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF678 #8278F6

analogous

#F6C178 #ECF678 #ADF678

triadic

#ECF678 #78ECF6 #F678EC

tetradic

#ECF678 #78F6C1 #8278F6 #F678AD

square

#ECF678 #78F6C1 #8278F6 #F678AD

split-complementary

#ECF678 #78ADF6 #C178F6

monochromatic

#D3E40F #E4F23F #ECF678 #F4FAB1 #FBFDE2

Accessibility & contrast

On white

1.17

#ECF678 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.02

#ECF678 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF678

18.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF678	#FFFFFF	#000000	##000000
##ECF678	1.00	1.17	18.02	18.02
#FFFFFF	1.17	1.00	21.00	21.00
#000000	18.02	21.00	1.00	1.00
##000000	18.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC6C

Deuteranopia (green-blind)

#FFEF7F

Tritanopia (blue-blind)

#F9EADA

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf678;
/* rgb */ color: rgb(236, 246, 120);
/* oklch */ color: oklch(94.1% 0.150 113.0);

Tailwind

colors: {
  custom: {
    50: '#f4f9a2',
    500: '#ecf678',
    950: '#000000',
  },
}

SCSS

$custom: #ecf678;
$custom-light: #f4f9a2;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf678",
  "rgb": {
    "r": 236,
    "g": 246,
    "b": 120
  },
  "hsl": {
    "h": 64.762,
    "s": 87.5,
    "l": 71.765
  },
  "oklch": {
    "l": 0.9406,
    "c": 0.15009,
    "h": 113
  },
  "luminance": 0.851
}

Semantic roles & 50–950 ramp

primary

#ECF678

secondary

#4C41D1

accent

#01E413

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF678

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

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