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Patrician Spinach

#537d18
Notes

Patrician Spinach (#537D18) 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 (85°, 68%, 29%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#537d18
RGB
rgb(83, 125, 24)
HSL
hsl(85, 68%, 29%)
HWB
hwb(85 9% 51%)
OKLCH
oklch(53.9% 0.134 130.3)
P3
color(display-p3 0.3616 0.4858 0.1705)
HSV
hsv(85, 81%, 49%)
LAB
lab(47.72% -30.49 46.39)
LCH
lch(47.72% 55.51 123.32)
CMYK
cmyk(34%, 0%, 81%, 51%)

Etymology

Patrician
adjective

Latin patrīcius, of the noble class — derived from pater (father). As a color modifier, patrician implies a saturated-and-aristocratic-and-Roman-Republic quality, the deep-rich color of Roman-Patrician-class toga and senatorial-livery hereditary-aristocratic dress. Sits at the bold-and-aristocratic end of the grid, parallel to senatorial and imperial.

Spinach
noun

Spinacia oleracea, the Persian leaf cultivated in China and the Mediterranean since the seventh century, popularized in twentieth-century America by Popeye and a misplaced decimal point in an iron-content study. The color refers to fresh raw spinach leaves: a saturated, slightly yellow-shifted green with the matte finish of a crinkled-savoy leaf. Deeper than apple, cooler than olive, with the kitchen weight of a vegetable that wilts to a quarter its raw volume.

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.

#537d18
Original
#837300
Protanopia
#7d7023
Deuteranopia
#55776a
Tritanopia
#6d6d6d
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).
AAon White
4.87:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.31:1

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
##537D18
Display P3
Display P3
color(display-p3 0.3616 0.4858 0.1705)
P3 has subtle headroomOKLCH chroma 0.134

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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