#ECF564#ECF564

#ECF564 is a very light, vivid yellow. Relative luminance 0.841; OKLCH L 93.6% C 0.166 H 112.5°. Best body text is #000000 at 17.81:1 contrast (WCAG AA passes).

Color values

HEX	#ECF564
RGB	rgb(236, 245, 100)
HSL	hsl(64, 88%, 68%)
HSV	hsv(64, 59%, 96%)
CMYK	cmyk(3.7%, 0%, 59.2%, 3.9%)
CIE-LAB	lab(93.48, -21.32, 66.91)
CIE-LCH	lch(93.48, 70.23, 107.68°)
OKLab	oklab(93.64% -0.0636 0.1535)
OKLCH	oklch(93.64% 0.166 112.5)
XYZ	xyz(69.5465, 84.0592, 24.6156)
Luminance	0.8406 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF564 #6D64F5

analogous

#F5B564 #ECF564 #A4F564

triadic

#ECF564 #64ECF5 #F564EC

tetradic

#ECF564 #64F5B5 #6D64F5 #F564A4

square

#ECF564 #64F5B5 #6D64F5 #F564A4

split-complementary

#ECF564 #64A4F5 #B564F5

monochromatic

#C5D10D #E5F12B #ECF564 #F3F99D #FAFCD7

Accessibility & contrast

On white

1.18

#ECF564 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.81

#ECF564 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF564

17.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF564	#FFFFFF	#000000	##000000
##ECF564	1.00	1.18	17.81	17.81
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.81	21.00	1.00	1.00
##000000	17.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA53

Deuteranopia (green-blind)

#FFEE6D

Tritanopia (blue-blind)

#FAE7D6

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #ecf564;
/* rgb */ color: rgb(236, 245, 100);
/* oklch */ color: oklch(93.6% 0.166 112.5);

Tailwind

colors: {
  custom: {
    50: '#f5f896',
    500: '#ecf564',
    950: '#000000',
  },
}

SCSS

$custom: #ecf564;
$custom-light: #f5f896;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf564",
  "rgb": {
    "r": 236,
    "g": 245,
    "b": 100
  },
  "hsl": {
    "h": 63.724,
    "s": 87.879,
    "l": 67.647
  },
  "oklch": {
    "l": 0.9364,
    "c": 0.16615,
    "h": 112.5
  },
  "luminance": 0.84058
}

Semantic roles & 50–950 ramp

primary

#ECF564

secondary

#3A31CC

accent

#01E40F

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF564

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

Preview Lab → · Contrast checker → · Palette generator →