#ECF481#ECF481

#ECF481 is a very light, vivid yellow. Relative luminance 0.841; OKLCH L 93.8% C 0.139 H 112.3°. Best body text is #000000 at 17.82:1 contrast (WCAG AA passes).

Color values

HEX	#ECF481
RGB	rgb(236, 244, 129)
HSL	hsl(64, 84%, 73%)
HSV	hsv(64, 47%, 96%)
CMYK	cmyk(3.3%, 0%, 47.1%, 4.3%)
CIE-LAB	lab(93.50, -18.52, 54.09)
CIE-LCH	lch(93.50, 57.18, 108.90°)
OKLab	oklab(93.75% -0.0528 0.1288)
OKLCH	oklch(93.75% 0.139 112.3)
XYZ	xyz(70.9064, 84.1205, 33.2662)
Luminance	0.8412 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF481 #8981F4

analogous

#F4C281 #ECF481 #B2F481

triadic

#ECF481 #81ECF4 #F481EC

tetradic

#ECF481 #81F4C2 #8981F4 #F481B2

square

#ECF481 #81F4C2 #8981F4 #F481B2

split-complementary

#ECF481 #81B2F4 #C281F4

monochromatic

#D8E614 #E4EF49 #ECF481 #F4F9B9 #FBFDE3

Accessibility & contrast

On white

1.18

#ECF481 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.82

#ECF481 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF481

17.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF481	#FFFFFF	#000000	##000000
##ECF481	1.00	1.18	17.82	17.82
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.82	21.00	1.00	1.00
##000000	17.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB77

Deuteranopia (green-blind)

#FFEE87

Tritanopia (blue-blind)

#F9E8D9

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #ecf481;
/* rgb */ color: rgb(236, 244, 129);
/* oklch */ color: oklch(93.8% 0.139 112.3);

Tailwind

colors: {
  custom: {
    50: '#f4f7a8',
    500: '#ecf481',
    950: '#000000',
  },
}

SCSS

$custom: #ecf481;
$custom-light: #f4f7a8;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf481",
  "rgb": {
    "r": 236,
    "g": 244,
    "b": 129
  },
  "hsl": {
    "h": 64.174,
    "s": 83.942,
    "l": 73.137
  },
  "oklch": {
    "l": 0.93754,
    "c": 0.13919,
    "h": 112.3
  },
  "luminance": 0.84119
}

Semantic roles & 50–950 ramp

primary

#ECF481

secondary

#5349D0

accent

#05E014

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF481

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

Preview Lab → · Contrast checker → · Palette generator →