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Refulgent Kohlrabi

#37b040
Notes

Refulgent Kohlrabi (#37B040) 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 (124°, 52%, 45%) 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
#37b040
RGB
rgb(55, 176, 64)
HSL
hsl(124, 52%, 45%)
HWB
hwb(124 22% 31%)
OKLCH
oklch(66.7% 0.185 144.2)
P3
color(display-p3 0.3632 0.6807 0.3109)
HSV
hsv(124, 69%, 69%)
LAB
lab(63.53% -55.55 46.53)
LCH
lch(63.53% 72.46 140.05)
CMYK
cmyk(69%, 0%, 64%, 31%)

Etymology

Refulgent
adjective

Latin refulgēns, shining-back — present-participle of refulgere, sharing root with fulgor (lightning). As a color modifier, refulgent implies a saturated-and-reflective-shining quality, the bright color of polished-bronze-and-armor reflective-surface mid-day-sun reflection. Sits at the bright-and-saturated end of the grid, parallel to effulgent and resplendent 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

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.

#37b040
Original
#b3a033
Protanopia
#a5964a
Deuteranopia
#11ab98
Tritanopia
#8e8e8e
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).
Failon White
2.82:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
7.45:1

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
##37B040
Display P3
Display P3
color(display-p3 0.3632 0.6807 0.3109)
P3 has visible headroomOKLCH chroma 0.185

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

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