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#fde538

a balanced, electric yellow · warm · closest name: Gold

RGB
253, 229, 56
HSL
53°, 98%, 61%
CMYK
0, 10, 78, 1
Luminance
0.7721

At a glance

Every number on this page in one read: what #fde538 is made of, how bright it looks, and which way it leans.

Hex
#fde538
Hue
53°
yellow
Saturation
98%
electric
Lightness
61%
balanced
Brightness
99%
HSV value
Perceived
88%
weighted brightness
Luminance
0.7721
WCAG relative
Temperature
Warm
19/100 cool
Color family
Yellow
Tone
Electric
Best ink
Black
16.44:1
Closest name
Gold
ΔE2000 4.8
Where it sits
Hue53° of 360°
Saturation98%
Lightness61%
Temperature
Warm ← → Cool19% cool

Reads warm. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Every format

HEX#fde538
RGBrgb(253, 229, 56)
HSLhsl(53, 98%, 61%)
CMYKcmyk(0%, 10%, 78%, 1%)
LABlab(90.4 -8.8 80.2)
LCHlch(90.4 80.7 96.3)
OKLCHoklch(0.914 0.177 100.9)
Decimal16639288
Display P3color(display-p3 0.992 0.898 0.220)

Copy-ready code

/* CSS */
color: #fde538;
background-color: #fde538;
/* Tailwind (arbitrary) */
class="text-[#fde538] bg-[#fde538]"
/* SCSS */
$brand: #fde538;
/* SwiftUI */
Color(red: 0.992, green: 0.898, blue: 0.220)
/* Android */
Color.parseColor("#fde538")
/* Flutter */
Color(0xFFFDE538)
/* Python / OpenCV (BGR) */
(56, 229, 253)

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #fde538 · 16.44:1
Use #000000AAA at every size.
Aa
White text · 1.28:1
AA fail · AA large fail · AAA fail
Aa
Black text · 16.44:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #fde538 as text scores 1.28:1 on white and 16.44:1 on black.

Accessibility — WCAG contrast

Aa
#fde538 on white: 1.28:1
AA ✗ fail · AA-large · AAA
Aa
#fde538 on black: 16.44:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #FBDE00
deuteranopia · #FFE845
tritanopia · #FFD4C5

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #fde538 is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#FDFCF1
#FCF9E3
#FBF4C1
#FEF190
#FDE958
#fde538
#F2D502
#CAB202
#A28E02
#746706
#494004
Base = 500Lightest = 50 · #FDFCF1Darkest = 950 · #494004
:root {
  --brand-50: #FDFCF1;
  --brand-100: #FCF9E3;
  --brand-200: #FBF4C1;
  --brand-300: #FEF190;
  --brand-400: #FDE958;
  --brand-500: #fde538;
  --brand-600: #F2D502;
  --brand-700: #CAB202;
  --brand-800: #A28E02;
  --brand-900: #746706;
  --brand-950: #494004;
  --brand: #fde538;
  --brand-ink: #000000;
}

Colors that work with #fde538

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#FAFAF4
Tinted page background
Border#EDE7C0
Hairlines and dividers
Muted text#9B914B
Captions on the surface
Accent#3681FF
Second voice, not a rival
Dark variant#7E6F01
Hover, pressed, headers
Light variant#FFFCE6
Selected rows, tints
Dark surface#242214
Dark-mode background
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

How to use #fde538

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • Thin strokes and 1px borders — they disappear on light UI
  • Pairing with a same-lightness hue — edges vibrate

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#3850FD
Analogous left#FD8338
Analogous right#B2FD38
Split-complement 1#38B2FD
Split-complement 2#8338FD
Triadic 1#38FDE5
Triadic 2#E538FD
Tetradic#38FD83

RGB percentages

Red99.2%
Green89.8%
Blue22.0%

CMYK percentages

Cyan0.0%
Magenta9.5%
Yellow77.9%
Key (black)0.8%

Color previews

#fde538 text on a black background

contrast 16.44:1

Card sample

#fde538 text on a white background

contrast 1.28:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #fde538;
Background color
Panel with #fde538 background
background-color: #fde538;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #fde538;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(253, 229, 56, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(253, 229, 56, 0.45);
Border & gradient
Gradient panel
border: 3px solid #fde538;
background: linear-gradient(135deg, #fde538, #92FD38);

Monochromatic scale

Palettes built from #fde538

Shades — darker

Tints — lighter

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#fde538 in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
RetailLeisureEnergyWarning systems
Common UI roles
ButtonsLinksFocus statesCharts
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

#fde538, answered

What color is #fde538?

#fde538 is a balanced electric yellow, closest to Gold (ΔE2000 4.8). It sits at 53° on the hue wheel with 98% saturation and 61% lightness, which reads as warm.

What is the RGB value of #fde538?

rgb(253, 229, 56) — 253 red, 229 green and 56 blue out of 255, or 99.2% / 89.8% / 22% by channel.

Is #fde538 a light or a dark color?

It is a light color. Relative luminance is 0.7721 and perceived brightness is 88%, so black text on it reaches 16.44:1.

Should I use black or white text on #fde538?

Black. It scores 16.44:1 against #fde538, versus 1.28:1 for white — AAA at any size.

What is the complementary color of #fde538?

#3850FD sits directly opposite on the wheel. Softer options are the split-complements #38B2FD and #8338FD, which give the same contrast with far less vibration.

What colors go well with #fde538?

For interface work: #FAFAF4 as the surface, #EDE7C0 for borders, #9B914B for secondary text, #3681FF as an accent and #7E6F01 for hover and pressed states. For a palette, the analogous pair #FD8338 and #B2FD38 stays calm, while #3850FD is the loudest partner.

What is #fde538 in CMYK for printing?

cmyk(0%, 10%, 78%, 1%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #fde538 warm or cool?

Warm — it scores 19 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #FDB538; nudged cooler, #CEFF36.

Work with #fde538 in the Color Lab