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Patrician Celery

#21a200
Notes

Patrician Celery (#21A200) is a deep green 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 (108°, 100%, 32%) 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#21a200
RGB
rgb(33, 162, 0)
HSL
hsl(108, 100%, 32%)
HWB
hwb(108 0% 36%)
OKLCH
oklch(62.1% 0.205 141.2)
HSV
hsv(108, 100%, 64%)
LAB
lab(58.19% -58.61 59.62)
LCH
lch(58.19% 83.60 134.51)
CMYK
cmyk(80%, 0%, 100%, 36%)

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.

Celery
noun

Apium graveolens, the marsh herb cultivated for its crisp pale-green stalks since at least the time of Homer, though the modern crunchy celery is a nineteenth-century selection. The color refers to a fresh celery rib in profile: a soft, slightly muted pale green with the optical translucency of high-water-content vegetable tissue. Lighter than pear, cooler than wheat.

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.

#21a200
Original
#a69200
Protanopia
#998821
Deuteranopia
#009d89
Tritanopia
#7b7b7b
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
3.37:1
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
6.23:1

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