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Vivid Hara

#66b331
Notes

Vivid Hara (#66B331) is a true lime with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (96°, 57%, 45%) 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#66b331
RGB
rgb(102, 179, 49)
HSL
hsl(96, 57%, 45%)
HWB
hwb(96 19% 30%)
OKLCH
oklch(69.1% 0.179 135.4)
HSV
hsv(96, 73%, 70%)
LAB
lab(65.97% -45.61 55.69)
LCH
lch(65.97% 71.98 129.32)
CMYK
cmyk(43%, 0%, 73%, 30%)

Etymology

Vivid
adjective

From the Latin vividus, full of life — used as a color modifier since the late sixteenth century for hues that read as luminous and saturated. Vivid red, vivid blue: the implication is that the color appears almost lit from within, with the optical brightness of a high-chroma surface in good light. Sits at the bright-bucket center alongside bright and electric.

Hara
noun

The Hindi word for green — used for the saturated lime-green of fresh hara dhaniya (cilantro), hara mirch (green chili), and the hara saag leafy-green dishes of North Indian cooking. The color refers to fresh hara dhaniya leaves: a saturated, slightly cool yellow-green with the matte finish of fresh cilantro leaf.

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.

#66b331
Original
#baa41a
Protanopia
#af9e3e
Deuteranopia
#64ac9a
Tritanopia
#999999
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
2.61:1
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
8.06:1

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