#ECF477#ECF477

#ECF477 is a very light, vivid yellow. Relative luminance 0.839; OKLCH L 93.6% C 0.149 H 112.2°. Best body text is #000000 at 17.77:1 contrast (WCAG AA passes).

Color values

HEX	#ECF477
RGB	rgb(236, 244, 119)
HSL	hsl(64, 85%, 71%)
HSV	hsv(64, 51%, 96%)
CMYK	cmyk(3.3%, 0%, 51.2%, 4.3%)
CIE-LAB	lab(93.39, -19.40, 58.56)
CIE-LCH	lch(93.39, 61.69, 108.33°)
OKLab	oklab(93.63% -0.0563 0.1377)
OKLCH	oklch(93.63% 0.149 112.2)
XYZ	xyz(70.2739, 83.8675, 29.9353)
Luminance	0.8387 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF477 #7F77F4

analogous

#F4BD77 #ECF477 #ADF477

triadic

#ECF477 #77ECF4 #F477EC

tetradic

#ECF477 #77F4BD #7F77F4 #F477AD

square

#ECF477 #77F4BD #7F77F4 #F477AD

split-complementary

#ECF477 #77ADF4 #BD77F4

monochromatic

#D1DF12 #E4EF3E #ECF477 #F4F9B0 #FBFDE3

Accessibility & contrast

On white

1.18

#ECF477 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.77

#ECF477 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF477

17.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF477	#FFFFFF	#000000	##000000
##ECF477	1.00	1.18	17.77	17.77
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.77	21.00	1.00	1.00
##000000	17.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA6B

Deuteranopia (green-blind)

#FFEE7E

Tritanopia (blue-blind)

#F9E8D8

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #ecf477;
/* rgb */ color: rgb(236, 244, 119);
/* oklch */ color: oklch(93.6% 0.149 112.2);

Tailwind

colors: {
  custom: {
    50: '#f4f7a1',
    500: '#ecf477',
    950: '#000000',
  },
}

SCSS

$custom: #ecf477;
$custom-light: #f4f7a1;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf477",
  "rgb": {
    "r": 236,
    "g": 244,
    "b": 119
  },
  "hsl": {
    "h": 63.84,
    "s": 85.034,
    "l": 71.176
  },
  "oklch": {
    "l": 0.93631,
    "c": 0.14873,
    "h": 112.2
  },
  "luminance": 0.83866
}

Semantic roles & 50–950 ramp

primary

#ECF477

secondary

#4A41CF

accent

#04E212

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF477

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

Preview Lab → · Contrast checker → · Palette generator →