#ECF664#ECF664

#ECF664 is a very light, vivid yellow. Relative luminance 0.847; OKLCH L 93.8% C 0.167 H 112.9°. Best body text is #000000 at 17.93:1 contrast (WCAG AA passes).

Color values

HEX	#ECF664
RGB	rgb(236, 246, 100)
HSL	hsl(64, 89%, 68%)
HSV	hsv(64, 59%, 96%)
CMYK	cmyk(4.1%, 0%, 59.3%, 3.5%)
CIE-LAB	lab(93.74, -21.80, 67.20)
CIE-LCH	lch(93.74, 70.65, 107.97°)
OKLab	oklab(93.85% -0.065 0.1541)
OKLCH	oklch(93.85% 0.167 112.9)
XYZ	xyz(69.8498, 84.6659, 24.7167)
Luminance	0.8467 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF664 #6E64F6

analogous

#F6B764 #ECF664 #A3F664

triadic

#ECF664 #64ECF6 #F664EC

tetradic

#ECF664 #64F6B7 #6E64F6 #F664A3

square

#ECF664 #64F6B7 #6E64F6 #F664A3

split-complementary

#ECF664 #64A3F6 #B764F6

monochromatic

#C6D30C #E5F32A #ECF664 #F3F99E #FAFDD8

Accessibility & contrast

On white

1.17

#ECF664 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.93

#ECF664 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF664

17.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF664	#FFFFFF	#000000	##000000
##ECF664	1.00	1.17	17.93	17.93
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.93	21.00	1.00	1.00
##000000	17.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB53

Deuteranopia (green-blind)

#FFEF6D

Tritanopia (blue-blind)

#FAE8D7

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf664;
/* rgb */ color: rgb(236, 246, 100);
/* oklch */ color: oklch(93.8% 0.167 112.9);

Tailwind

colors: {
  custom: {
    50: '#f5f996',
    500: '#ecf664',
    950: '#000000',
  },
}

SCSS

$custom: #ecf664;
$custom-light: #f5f996;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf664",
  "rgb": {
    "r": 236,
    "g": 246,
    "b": 100
  },
  "hsl": {
    "h": 64.11,
    "s": 89.024,
    "l": 67.843
  },
  "oklch": {
    "l": 0.9385,
    "c": 0.16724,
    "h": 112.9
  },
  "luminance": 0.84665
}

Semantic roles & 50–950 ramp

primary

#ECF664

secondary

#3B30CE

accent

#00E610

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF664

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

Preview Lab → · Contrast checker → · Palette generator →