#efc900

Color #efc900

A vivid, highly saturated medium yellow.

Closest named color Gold #ffd700 · ΔE 6.58 Nearest Tailwind class amber-300 #ffd230 · ΔE 3.2

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#efc900

RGB

rgb(239, 201, 0)

HSL

hsl(50.5, 100%, 46.9%)

HSV / HSB

hsv(50.5, 100%, 93.7%)

CMYK

cmyk(0%, 15.9%, 100%, 6.3%)

LAB

lab(81.91, -1.64, 82.89)

LCH

lch(81.91, 82.91, 91.13)

OKLCH

oklch(84.4%, 0.1733, 95.16)

HWB

hwb(50.5, 0%, 6.3%)

Harmony colors

Complementary

#0026ef

Analogous

#ef5200

#efc900

#9def00

Triadic

#efc900

#00efc9

#c900ef

Split-complementary

#efc900

#009def

#5200ef

Tetradic

#efc900

#26ef00

#0026ef

#c900ef

Square

#efc900

#00ef52

#0026ef

#ef009d

Shades

Color #efc900 mixed toward black.

#c7a800

#9f8600

#786500

#504300

#282200

Tints

Color #efc900 mixed toward white.

#ffdb1d

#ffe24a

#ffea78

#fff1a5

#fff8d2

Tones

Color #efc900 mixed toward gray.

#dbbc14

#c7ae28

#b3a03c

#9f9350

#8c8564

Accessibility

Aa White text on this color

1.61:1

Aa Black text on this color

13.02:1

Black text reads better on this background (13.02:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#e0df69 · ΔE 11.6

Deuteranopia

#e2e474 · ΔE 13

Tritanopia

#ed8a90 · ΔE 45.5

Achromatopsia

#cccccc · ΔE 28.9

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #efc900;

Tailwind (arbitrary value)

bg-[#efc900]

Related colors

Gold #ffd700

Cornsilk #fff8dc

Khaki #f0e68c

Lemon Chiffon #fffacd

Pale Goldenrod #eee8aa

Dark Khaki #bdb76b

Frequently asked questions

#efc900 (#efc900) is rgb(239, 201, 0) in RGB.

No, #efc900 is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #efc900, or check how it holds up for accessibility.

Generate a palette → Check contrast