#ECF667#ECF667

#ECF667 is a very light, vivid yellow. Relative luminance 0.847; OKLCH L 93.9% C 0.165 H 112.9°. Best body text is #000000 at 17.94:1 contrast (WCAG AA passes).

Color values

HEX	#ECF667
RGB	rgb(236, 246, 103)
HSL	hsl(64, 89%, 68%)
HSV	hsv(64, 58%, 96%)
CMYK	cmyk(4.1%, 0%, 58.1%, 3.5%)
CIE-LAB	lab(93.76, -21.59, 65.98)
CIE-LCH	lch(93.76, 69.42, 108.12°)
OKLab	oklab(93.88% -0.0641 0.1519)
OKLCH	oklch(93.88% 0.165 112.9)
XYZ	xyz(69.9977, 84.7250, 25.4955)
Luminance	0.8472 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF667 #7167F6

analogous

#F6B867 #ECF667 #A4F667

triadic

#ECF667 #67ECF6 #F667EC

tetradic

#ECF667 #67F6B8 #7167F6 #F667A4

square

#ECF667 #67F6B8 #7167F6 #F667A4

split-complementary

#ECF667 #67A4F6 #B867F6

monochromatic

#C8D60D #E5F32D #ECF667 #F3F9A1 #FAFDDB

Accessibility & contrast

On white

1.17

#ECF667 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.94

#ECF667 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF667

17.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF667	#FFFFFF	#000000	##000000
##ECF667	1.00	1.17	17.94	17.94
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.94	21.00	1.00	1.00
##000000	17.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB57

Deuteranopia (green-blind)

#FFEF70

Tritanopia (blue-blind)

#FAE9D7

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf667;
/* rgb */ color: rgb(236, 246, 103);
/* oklch */ color: oklch(93.9% 0.165 112.9);

Tailwind

colors: {
  custom: {
    50: '#f5f997',
    500: '#ecf667',
    950: '#000000',
  },
}

SCSS

$custom: #ecf667;
$custom-light: #f5f997;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf667",
  "rgb": {
    "r": 236,
    "g": 246,
    "b": 103
  },
  "hsl": {
    "h": 64.196,
    "s": 88.82,
    "l": 68.431
  },
  "oklch": {
    "l": 0.93878,
    "c": 0.16484,
    "h": 112.9
  },
  "luminance": 0.84724
}

Semantic roles & 50–950 ramp

primary

#ECF667

secondary

#3D32CF

accent

#00E510

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF667

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

Preview Lab → · Contrast checker → · Palette generator →