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Sonorous Kohlrabi

#137a28
Notes

Sonorous Kohlrabi (#137A28) 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 (132°, 73%, 28%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#137a28
RGB
rgb(19, 122, 40)
HSL
hsl(132, 73%, 28%)
HWB
hwb(132 7% 52%)
OKLCH
oklch(50.7% 0.148 145.6)
HSV
hsv(132, 84%, 48%)
LAB
lab(44.53% -45.41 36.00)
LCH
lch(44.53% 57.95 141.59)
CMYK
cmyk(84%, 0%, 67%, 52%)

Etymology

Sonorous
adjective

Latin sonōrus, resounding — derived from sonus (sound). As a color modifier, sonorous implies a saturated-and-richly-vibrating quality where the hue carries the deep-resonance visual register of a cathedral-organ-pipe low-note. Sits at the bold-and-resonant end of the grid, parallel to resonant and deep in usage.

Kohlrabi
noun

Brassica oleracea var. gongylodes — the swollen-stem cabbage variety used in German and Indian cooking. Kohlrabi color refers to a fresh raw kohlrabi bulb after its leaves are removed: a soft, slightly cool pale green with the matte finish of cruciferous root-stem.

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.

#137a28
Original
#7c6e1e
Protanopia
#71662f
Deuteranopia
#007769
Tritanopia
#5e5e5e
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
5.47:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.84:1

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