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Electrifying Daylight

#f9df38
Notes

Electrifying Daylight (#F9DF38) is a true amber with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (52°, 94%, 60%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#f9df38
RGB
rgb(249, 223, 56)
HSL
hsl(52, 94%, 60%)
HWB
hwb(52 22% 2%)
OKLCH
oklch(89.9% 0.173 99.8)
P3
color(display-p3 0.9594 0.8781 0.3585)
HSV
hsv(52, 78%, 98%)
LAB
lab(88.54% -7.48 78.39)
LCH
lch(88.54% 78.74 95.45)
CMYK
cmyk(0%, 10%, 78%, 2%)

Etymology

Electrifying
adjective

Greek ēléktron, amber — present-participle of electrify, named after the static-electricity property of rubbed amber. As a color modifier, electrifying implies a saturated-and-shocking-and-active quality, the bright color of Tesla-coil high-voltage atmospheric-discharge emission. Sits at the bright-and-active end of the grid, parallel to charged and neon in usage.

Daylight
noun

Diffuse light from the sun — including atmospheric scatter, cloud reflection, and ground-bounce. Daylight as a color refers to the warm pale yellow of diffuse light through a north-facing window at noon: a soft, slightly cool warm pale yellow with the optical balance of full-spectrum daylight.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#f9df38
Original
#f5d908
Protanopia
#fce245
Deuteranopia
#ffcec0
Tritanopia
#d8d8d8
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon White
1.34:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
15.64:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##F9DF38
Display P3
Display P3
color(display-p3 0.9594 0.8781 0.3585)
P3 has subtle headroomOKLCH chroma 0.173

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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