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Electrifying Helichrysum

#919c24
Notes

Electrifying Helichrysum (#919C24) 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 (66°, 63%, 38%) 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 blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#919c24
RGB
rgb(145, 156, 36)
HSL
hsl(66, 63%, 38%)
HWB
hwb(66 14% 39%)
OKLCH
oklch(66.2% 0.138 114.9)
HSV
hsv(66, 77%, 61%)
LAB
lab(61.59% -18.91 56.89)
LCH
lch(61.59% 59.95 108.39)
CMYK
cmyk(7%, 0%, 77%, 39%)

Etymology

Electrifying
adjective

Greek ēléktron, amber — present-participle of electrify, named after the static-electricity property of rubbed amber. As a color modifier, electrifying implies a saturated-and-shocking-and-active quality, the bright color of Tesla-coil high-voltage atmospheric-discharge emission. Sits at the bright-and-active end of the grid, parallel to charged and neon in usage.

Helichrysum
noun

The genus Helichrysum — Mediterranean composite-family plants whose dried yellow flower bracts retain their color for years (also called strawflower). The color refers to dried Helichrysum bracts in a winter bouquet: a soft, slightly muted dry yellow with the matte papery finish of preserved flower.

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.

#919c24
Original
#a89405
Protanopia
#a7962f
Deuteranopia
#9b9386
Tritanopia
#919191
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).
AA Largeon White
3.01:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.98:1

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