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Charged Solarium

#91b005
Notes

Charged Solarium (#91B005) is a true yellow with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (71°, 94%, 35%) 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#91b005
RGB
rgb(145, 176, 5)
HSL
hsl(71, 94%, 35%)
HWB
hwb(71 2% 31%)
OKLCH
oklch(70.8% 0.170 121.5)
HSV
hsv(71, 97%, 69%)
LAB
lab(67.34% -29.60 68.15)
LCH
lch(67.34% 74.30 113.48)
CMYK
cmyk(18%, 0%, 97%, 31%)

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.

Solarium
noun

A glass-roofed sunroom — particularly the Victorian and Edwardian solarium of British country houses, designed to capture warm sunlight on cool days. Solarium as a color refers to the warm yellow of sun-bleached interior wood and faded yellow-painted plaster: a soft, slightly muted warm yellow with the matte finish of UV-aged surface.

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.

#91b005
Original
#bba500
Protanopia
#b8a423
Deuteranopia
#9aa695
Tritanopia
#9d9d9d
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
2.50:1
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
8.42:1

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