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Spotlit Buttercup

#bdb311
Notes

Spotlit Buttercup (#BDB311) is a true yellow with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (57°, 83%, 40%) 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
#bdb311
RGB
rgb(189, 179, 17)
HSL
hsl(57, 83%, 40%)
HWB
hwb(57 7% 26%)
OKLCH
oklch(75.1% 0.157 105.5)
HSV
hsv(57, 91%, 74%)
LAB
lab(71.62% -11.92 71.38)
LCH
lch(71.62% 72.37 99.48)
CMYK
cmyk(0%, 5%, 91%, 26%)

Etymology

Spotlit
adjective

English compound spot + lit — past-participle of spotlight. As a color modifier, spotlit implies a saturated-and-narrow-beam-illuminated quality, the bright color of theatrical-stage-and-museum-display directed-spotlight focused-beam illumination. Sits at the bright-and-saturated end of the grid, parallel to sunlit and brilliant in usage.

Buttercup
noun

Ranunculus acris and its meadow cousins — the small, glossy yellow flowers of European pastures whose petals reflect ultraviolet light to attract bees. The color refers to a buttercup petal in full sun: a saturated, slightly cool yellow with the polished finish of an epidermis that scatters light like wet paint. The folk test for whether you like butter — holding the flower under your chin to catch its yellow reflection — works on every variety.

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.

#bdb311
Original
#c4ac00
Protanopia
#c7b225
Deuteranopia
#cca698
Tritanopia
#a9a9a9
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
2.18:1
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
9.62:1

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