What color is #ECF474?

#ECF474 is a light, vivid yellow known as Nuclear Acid. It belongs to the yellow family of colors.

What is the RGB value of Nuclear Acid?

The RGB value is 236, 244, 116: 236 red, 244 green and 116 blue on a 0 to 255 scale.

What is the complementary color of Nuclear Acid?

The complementary color is #7C74F4, found by rotating the hue 180° on the color wheel.

Is black or white text better on #ECF474?

Black text. Black text has a contrast ratio of 17.76:1 and white text 1.18:1. WCAG asks for at least 4.5:1 for normal text.

Nuclear Acid color: hex code #ECF474

#ECF474 rgb(236, 244, 116)

Shades of yellow

Nuclear Acid has the hex code #ECF474. It is a light, vivid yellow.

In the RGB color model it is made of 92.5% red, 95.7% green and 45.5% blue (236, 244, 116).

Its hue angle is 64°, with 85% saturation and 71% lightness. For print, the CMYK equivalent is 3% cyan, 0% magenta, 52% yellow and 4% black.

Black text is the more readable choice on this background (contrast 17.76:1).

Nuclear Acid (#ECF474) color codes

HEX	`#ECF474`
RGB	`rgb(236, 244, 116)`
RGB percent	`rgb(92.5%, 95.7%, 45.5%)`
HSL	`hsl(64, 85%, 71%)`
HSV / HSB	`hsv(64, 52%, 96%)`
CMYK	`cmyk(3%, 0%, 52%, 4%)`
CIE LAB	`lab(93.36, -19.65, 59.87)`
CIE LCH	`lch(93.36, 63.01, 108.17)`
CIE XYZ	`xyz(70.097, 83.797, 29.001)`
Decimal	`15529076`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with Nuclear Acid, based on their position on the color wheel.

Complementary

The color opposite on the color wheel (180°). Strongest contrast.

Analogous

Neighbors 30° either side. Calm, natural combinations.

Split complementary

The two colors next to the complement (150° and 210°).

Triadic

Three colors evenly spaced, 120° apart.

Tetradic (square)

Four colors 90° apart.

Shades, tints and tones

Shades (darker, mixed with black)

Tints (lighter, mixed with white)

Tones (mixed with gray)

Contrast and accessibility

Text on #ECF474	Ratio	AA	AAA	AA large
Sample text	17.76:1	Pass	Pass	Pass
Sample text	1.18:1	Fail	Fail	Fail

#ECF474 as text on	Ratio	AA	AAA	AA large
Sample text	1.18:1	Fail	Fail	Fail
Sample text	17.76:1	Pass	Pass	Pass

WCAG 2 asks for 4.5:1 for normal text (AA), 7:1 for AAA, and 3:1 for large text. Check other pairs.

Color blindness simulation

How #ECF474 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #ecf474; }
.text { color: #ecf474; }
.border { border: 2px solid #ecf474; }
.transparent { background-color: rgb(236 244 116 / 50%); }
.gradient { background: linear-gradient(to right, #ecf474, #acf474); }

Background

Text color

Border

Similar colors

Closest common color name: Butter Yellow.

See #ECF474 on its hex code page

Questions

What color is #ECF474?: #ECF474 is a light, vivid yellow known as Nuclear Acid. It belongs to the yellow family of colors.
What is the RGB value of Nuclear Acid?: The RGB value is 236, 244, 116: 236 red, 244 green and 116 blue on a 0 to 255 scale.
What is the complementary color of Nuclear Acid?: The complementary color is #7C74F4, found by rotating the hue 180° on the color wheel.
Is black or white text better on #ECF474?: Black text. Black text has a contrast ratio of 17.76:1 and white text 1.18:1. WCAG asks for at least 4.5:1 for normal text.