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Sparking Mullein

#bfd765
Notes

Sparking Mullein (#BFD765) is a true yellow with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (73°, 59%, 62%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#bfd765
RGB
rgb(191, 215, 101)
HSL
hsl(73, 59%, 62%)
HWB
hwb(73 40% 16%)
OKLCH
oklch(83.8% 0.143 119.5)
HSV
hsv(73, 53%, 84%)
LAB
lab(82.17% -24.61 52.85)
LCH
lch(82.17% 58.30 114.97)
CMYK
cmyk(11%, 0%, 53%, 16%)

Etymology

Sparking
adjective

Old English spearca, spark — present-participle of spark. As a color modifier, sparking implies a saturated-and-electrical-emission quality, the bright color of welding-arc-and-Tesla-coil high-voltage spark-discharge emission. Sits at the bright-and-electric end of the grid, parallel to flashing and coruscating in usage.

Mullein
noun

Verbascum thapsus, the European biennial whose tall yellow flower spikes appear in second-year growth. Used in classical antiquity as a torch (oiled flower spikes) and as a medicinal cough treatment. The color refers to a fresh Mullein flower spike at midsummer: a saturated, slightly cool yellow with the matte finish of small five-petaled flowers along a tall stem.

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

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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.

#bfd765
Original
#e3cc5a
Protanopia
#e0cd6c
Deuteranopia
#c8cdbd
Tritanopia
#cacaca
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
1.60:1
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
13.12:1

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