#ECF463#ECF463

#ECF463 is a very light, vivid yellow. Relative luminance 0.834; OKLCH L 93.4% C 0.166 H 112.2°. Best body text is #000000 at 17.69:1 contrast (WCAG AA passes).

Color values

HEX	#ECF463
RGB	rgb(236, 244, 99)
HSL	hsl(63, 87%, 67%)
HSV	hsv(63, 59%, 96%)
CMYK	cmyk(3.3%, 0%, 59.4%, 4.3%)
CIE-LAB	lab(93.21, -20.91, 67.03)
CIE-LCH	lch(93.21, 70.22, 107.33°)
OKLab	oklab(93.42% -0.0626 0.1536)
OKLCH	oklch(93.42% 0.166 112.2)
XYZ	xyz(69.1967, 83.4366, 24.2617)
Luminance	0.8344 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF463 #6B63F4

analogous

#F4B363 #ECF463 #A4F463

triadic

#ECF463 #63ECF4 #F463EC

tetradic

#ECF463 #63F4B3 #6B63F4 #F463A4

square

#ECF463 #63F4B3 #6B63F4 #F463A4

split-complementary

#ECF463 #63A4F4 #B363F4

monochromatic

#C4CE0F #E5F02A #ECF463 #F3F89C #FAFCD5

Accessibility & contrast

On white

1.19

#ECF463 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.69

#ECF463 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF463

17.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF463	#FFFFFF	#000000	##000000
##ECF463	1.00	1.19	17.69	17.69
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.69	21.00	1.00	1.00
##000000	17.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA52

Deuteranopia (green-blind)

#FFED6C

Tritanopia (blue-blind)

#FBE6D5

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ecf463;
/* rgb */ color: rgb(236, 244, 99);
/* oklch */ color: oklch(93.4% 0.166 112.2);

Tailwind

colors: {
  custom: {
    50: '#f5f795',
    500: '#ecf463',
    950: '#000000',
  },
}

SCSS

$custom: #ecf463;
$custom-light: #f5f795;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf463",
  "rgb": {
    "r": 236,
    "g": 244,
    "b": 99
  },
  "hsl": {
    "h": 63.31,
    "s": 86.826,
    "l": 67.255
  },
  "oklch": {
    "l": 0.9342,
    "c": 0.16587,
    "h": 112.2
  },
  "luminance": 0.83435
}

Semantic roles & 50–950 ramp

primary

#ECF463

secondary

#3A31CA

accent

#02E30F

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF463

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

Preview Lab → · Contrast checker → · Palette generator →