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Charged Yolk

#efe635
Notes

Charged Yolk (#EFE635) is a true yellow 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 (57°, 85%, 57%) 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
#efe635
RGB
rgb(239, 230, 53)
HSL
hsl(57, 85%, 57%)
HWB
hwb(57 21% 6%)
OKLCH
oklch(90.4% 0.181 106.4)
P3
color(display-p3 0.9311 0.9032 0.3566)
HSV
hsv(57, 78%, 94%)
LAB
lab(89.49% -15.22 79.78)
LCH
lch(89.49% 81.22 100.80)
CMYK
cmyk(0%, 4%, 78%, 6%)

Etymology

Charged
adjective

Old French chargier, to load — past-participle of charge, sharing root with cargo. As a color modifier, charged implies a saturated-and-electrically-loaded quality where the hue carries visual potential-energy. Sits at the bright-and-active end of the grid, parallel to electrified and energetic in usage.

Yolk
noun

The yellow center of a chicken egg — colored by carotenoid pigments in the hen's feed, ranging from pale lemon (commercial barn-raised) to deep orange (pasture-raised, marigold-supplemented). The color refers to a fresh free-range yolk against the white: a saturated, slightly orange-shifted yellow with the satiny surface of a vitellus membrane. Warmer than canary, deeper than sunflower; the unifying yellow of breakfast.

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.

#efe635
Original
#fadd00
Protanopia
#fee444
Deuteranopia
#ffd6c6
Tritanopia
#dbdbdb
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
1.31:1
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
16.04:1

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
##EFE635
Display P3
Display P3
color(display-p3 0.9311 0.9032 0.3566)
P3 has visible headroomOKLCH chroma 0.181

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

Related Colors

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