#ECF563#ECF563

#ECF563 is a very light, vivid yellow. Relative luminance 0.840; OKLCH L 93.6% C 0.167 H 112.5°. Best body text is #000000 at 17.81:1 contrast (WCAG AA passes).

Color values

HEX	#ECF563
RGB	rgb(236, 245, 99)
HSL	hsl(64, 88%, 67%)
HSV	hsv(64, 60%, 96%)
CMYK	cmyk(3.7%, 0%, 59.6%, 3.9%)
CIE-LAB	lab(93.47, -21.39, 67.32)
CIE-LCH	lch(93.47, 70.64, 107.63°)
OKLab	oklab(93.63% -0.0639 0.1542)
OKLCH	oklch(93.63% 0.167 112.5)
XYZ	xyz(69.4984, 84.0400, 24.3622)
Luminance	0.8404 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF563 #6C63F5

analogous

#F5B563 #ECF563 #A3F563

triadic

#ECF563 #63ECF5 #F563EC

tetradic

#ECF563 #63F5B5 #6C63F5 #F563A3

square

#ECF563 #63F5B5 #6C63F5 #F563A3

split-complementary

#ECF563 #63A3F5 #B563F5

monochromatic

#C4D00D #E5F129 #ECF563 #F3F99D #FAFCD6

Accessibility & contrast

On white

1.18

#ECF563 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.81

#ECF563 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF563

17.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF563	#FFFFFF	#000000	##000000
##ECF563	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)

#FFEA52

Deuteranopia (green-blind)

#FFEE6C

Tritanopia (blue-blind)

#FBE7D6

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #ecf563;
/* rgb */ color: rgb(236, 245, 99);
/* oklch */ color: oklch(93.6% 0.167 112.5);

Tailwind

colors: {
  custom: {
    50: '#f5f895',
    500: '#ecf563',
    950: '#000000',
  },
}

SCSS

$custom: #ecf563;
$custom-light: #f5f895;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf563",
  "rgb": {
    "r": 236,
    "g": 245,
    "b": 99
  },
  "hsl": {
    "h": 63.699,
    "s": 87.952,
    "l": 67.451
  },
  "oklch": {
    "l": 0.9363,
    "c": 0.16695,
    "h": 112.5
  },
  "luminance": 0.84039
}

Semantic roles & 50–950 ramp

primary

#ECF563

secondary

#3A30CC

accent

#01E50F

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF563

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

Preview Lab → · Contrast checker → · Palette generator →