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Electric Helichrysum

#91a21d
Notes

Electric Helichrysum (#91A21D) 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 (68°, 70%, 37%) 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
#91a21d
RGB
rgb(145, 162, 29)
HSL
hsl(68, 70%, 37%)
HWB
hwb(68 11% 36%)
OKLCH
oklch(67.6% 0.148 117.2)
HSV
hsv(68, 82%, 64%)
LAB
lab(63.30% -22.23 60.53)
LCH
lch(63.30% 64.48 110.16)
CMYK
cmyk(10%, 0%, 82%, 36%)

Etymology

Electric
adjective

From the Greek elektron, amber — the substance whose static-electric properties were observed by Thales of Miletus. Used as a color modifier since the late nineteenth century after electric light made certain saturated colors feel attention-demanding. Electric blue, electric pink: the implication is hot luminance combined with optical impact. Sits at the bright-bucket extreme.

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.

#91a21d
Original
#ae9900
Protanopia
#ac9a2b
Deuteranopia
#9b988a
Tritanopia
#959595
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
2.84:1
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
7.39:1

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