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Jazzed Daffodil

#efe221
Notes

Jazzed Daffodil (#EFE221) 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 (56°, 87%, 53%) 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
#efe221
RGB
rgb(239, 226, 33)
HSL
hsl(56, 87%, 53%)
HWB
hwb(56 13% 6%)
OKLCH
oklch(89.5% 0.185 105.2)
P3
color(display-p3 0.9285 0.8880 0.3202)
HSV
hsv(56, 86%, 94%)
LAB
lab(88.38% -13.80 83.60)
LCH
lch(88.38% 84.73 99.37)
CMYK
cmyk(0%, 5%, 86%, 6%)

Etymology

Jazzed
adjective

American slang jazz, liveliness — past-participle of jazz. As a color modifier, jazzed implies a saturated-and-excited-and-active quality, the bright color of American-Jazz-Age poster-and-album-cover saturated-and-rhythmic graphic-design. Sits at the bright-and-active end of the grid, parallel to caffeinated and wired in usage.

Daffodil
noun

Narcissus pseudonarcissus, the wild daffodil of British and European woodland. The color is the trumpet-shaped corona of a fully open daffodil at peak spring: a saturated, slightly orange-shifted yellow with the satiny finish of waxy petal tissue. Warmer than lemon, brighter than buttercup, with the seasonal weight of a flower that arrives before the trees have leaves.

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.

#efe221
Original
#f7da00
Protanopia
#fbe136
Deuteranopia
#ffd2c1
Tritanopia
#d7d7d7
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
1.35:1
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
15.57:1

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
##EFE221
Display P3
Display P3
color(display-p3 0.9285 0.8880 0.3202)
P3 has visible headroomOKLCH chroma 0.185

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.

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