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Hefty Qīng

#33a137
Notes

Hefty Qīng (#33A137) is a true green with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (122°, 52%, 42%) 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#33a137
RGB
rgb(51, 161, 55)
HSL
hsl(122, 52%, 42%)
HWB
hwb(122 20% 37%)
OKLCH
oklch(62.5% 0.175 143.6)
P3
color(display-p3 0.3327 0.6227 0.2743)
HSV
hsv(122, 68%, 63%)
LAB
lab(58.48% -52.04 44.84)
LCH
lch(58.48% 68.70 139.25)
CMYK
cmyk(68%, 0%, 66%, 37%)

Etymology

Hefty
adjective

Old English hefig, heavy — adjectival suffix -y. As a color modifier, hefty implies a saturated-and-substantial-and-weighty quality where the hue carries the visual heft of a hand-cast pig-iron object. Sits at the bold-and-weighty end of the grid, parallel to substantial and weighty in usage.

Qīng
noun

The classical Chinese word for blue-green — one of the five Chinese cardinal colors, corresponding to the east, spring, and the dragon. Qīng spans modern Chinese green and blue, encompassing everything from forest leaves to deep-sea water in pre-modern color vocabulary. The color refers to a qīng-cí (blue-green celadon) glaze: a saturated, slightly muted deep green-blue.

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

Click any swatch to explore

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.

#33a137
Original
#a4922a
Protanopia
#978940
Deuteranopia
#159c8b
Tritanopia
#828282
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
3.34:1
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
6.29:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##33A137
Display P3
Display P3
color(display-p3 0.3327 0.6227 0.2743)
P3 has subtle headroomOKLCH chroma 0.175

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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