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Steadfast Broccoli

#539a3a
Notes

Steadfast Broccoli (#539A3A) 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 (104°, 45%, 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
#539a3a
RGB
rgb(83, 154, 58)
HSL
hsl(104, 45%, 42%)
HWB
hwb(104 23% 40%)
OKLCH
oklch(61.8% 0.149 138.5)
P3
color(display-p3 0.3937 0.5972 0.2793)
HSV
hsv(104, 62%, 60%)
LAB
lab(57.32% -40.63 42.51)
LCH
lch(57.32% 58.80 133.70)
CMYK
cmyk(46%, 0%, 62%, 40%)

Etymology

Steadfast
adjective

Old English stede-fæst, fixed in place — sharing root with German stetig. As a color modifier, steadfast implies a saturated-and-unwavering quality where the hue maintains its visual character without modulation. Sits at the bold-and-firm end of the grid, parallel to unwavering and firm in usage.

Broccoli
noun

Brassica oleracea var. italica — the Italian-bred cabbage variety eaten for its tight green flower clusters, named from the Italian broccolo (cabbage sprout). Broccoli color refers to a fresh raw broccoli crown on a cutting board: a saturated, slightly cool deep green with the matte finish of dense green florets.

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.

#539a3a
Original
#9f8d2f
Protanopia
#958742
Deuteranopia
#4e9586
Tritanopia
#848484
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
3.47:1
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
6.05:1

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
##539A3A
Display P3
Display P3
color(display-p3 0.3937 0.5972 0.2793)
P3 has subtle headroomOKLCH chroma 0.149

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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