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Bright Comfrey

#78a604
Notes

Bright Comfrey (#78A604) is a deep lime 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 (77°, 95%, 33%) places it in the highly saturated band at a dark 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
#78a604
RGB
rgb(120, 166, 4)
HSL
hsl(77, 95%, 33%)
HWB
hwb(77 2% 35%)
OKLCH
oklch(66.7% 0.171 126.9)
HSV
hsv(77, 98%, 65%)
LAB
lab(62.74% -35.19 64.02)
LCH
lch(62.74% 73.06 118.80)
CMYK
cmyk(28%, 0%, 98%, 35%)

Etymology

Bright
adjective

Old English beorht, shining, luminous — cognate with the German Bracht, splendor. Applied to color since at least the medieval period for hues that read as luminous: not just light in value but optically active, as if scattering more light back than a dimmer color of the same lightness would. Sits at the bright-bucket center alongside vivid and brilliant.

Comfrey
noun

Symphytum officinale, the European medicinal plant whose green leaves and root were used in traditional European bone-setting and wound treatment — also known as boneset or knitbone. Comfrey color refers to fresh comfrey leaves on a hedge bank: a soft, slightly muted gray-green with the matte finish of pubescent leaf surface. Cooler than nettle.

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.

#78a604
Original
#af9a00
Protanopia
#a99721
Deuteranopia
#7d9e8d
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).
Failon White
2.89:1
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
7.25:1

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