Palettes / Colors / #ECA604

#ECA604 — Vivid Yellow

#ECA604 is a yellow color we call Vivid Yellow, closest to the named color Orange (#FFA500). It belongs to the yellow family.

Color name

Closest CSS keyword: orange (#FFA500) — not an exact match. CSS orange gives you #FFA500, a different color; use #ECA604 when you need this exact shade.

Sources: common names follow widely used color-name references; CSS keywords and their hex values follow the CSS Color specification.

#ECA604 is a warm yellow color associated with optimism, attention and cheer. It is saturated enough to be the accent — buttons, highlights and calls to action — while neutrals do the quiet work around it.

Its strongest partner is its complement #0449EC; it also sits naturally between #EC3204 and #BEEC04. In the palettes below you can see it working alongside real color combinations from our collection.

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Color values

RGB & CMYK percentages

Red 93% · Green 65% · Blue 2%

Cyan 0% · Magenta 30% · Yellow 98% · Key 7%

CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.

Previews

CSS code for #ECA604

.text { color: #ECA604; }
.background { background-color: #ECA604; }
.border { border: 3px solid #ECA604; }
.text-rgb { color: rgb(236, 166, 4); }
.text-hsl { color: hsl(42, 97%, 47%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #ECA604; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(236, 166, 4, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #ECA604; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(236, 166, 4, 0.8); }

HTML: <p style="color:#ECA604">Text here</p> · <div style="background-color:#ECA604">Div content here</div>

Shades of #ECA604

Tints of #ECA604

Tones of #ECA604

Color harmonies

Complementary — #0449EC:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #ECA604: #000000.

Semi-transparent (opacity) text on #ECA604

Text set with opacity blends into the background, so its real contrast is lower than the solid ratios above. Choose a text color and an opacity to see the blended color and its true ratio:

How #ECA604 looks with color blindness

Simulated with standard Machado color-vision-deficiency matrices — useful when this color carries meaning in charts, maps or interfaces:

Closest design-system colors

The nearest matches in the Tailwind CSS, Material Design and Bootstrap palettes — handy when you need a framework class instead of a raw hex:

Palettes with a similar color

These palettes use a close neighbour of #ECA604 rather than the exact color:

Similar colors

The closest colors that actually appear in our palette collection — click any to open its page:

Browse neighbouring colors

← #ECA603  ·  #ECA605 →

Frequently asked questions

What color is #ECA604?

#ECA604 is Vivid Yellow, a yellow color (RGB 236, 166, 4). Its closest standard named color is Orange.

What is the RGB and HSL of #ECA604?

#ECA604 is RGB 236, 166, 4 — HSL 42°, 97%, 47% — CMYK 0%, 30%, 98%, 7%.

What colors go with #ECA604?

Its complement is #0449EC; analogous partners are #EC3204 and #BEEC04. It also appears in 6+ palettes in our collection.

Can I use #ECA604 for text?

Black text on #ECA604 has a contrast ratio of 10.02:1 (passes WCAG AA); white text gives 2.10:1.