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Vivid Kohlrabi

#40b131
Notes

Vivid Kohlrabi (#40B131) is a true green with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (113°, 57%, 44%) 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
#40b131
RGB
rgb(64, 177, 49)
HSL
hsl(113, 57%, 44%)
HWB
hwb(113 19% 31%)
OKLCH
oklch(67.1% 0.194 141.4)
P3
color(display-p3 0.3814 0.6849 0.2732)
HSV
hsv(113, 72%, 69%)
LAB
lab(63.96% -55.47 53.21)
LCH
lch(63.96% 76.86 136.19)
CMYK
cmyk(64%, 0%, 72%, 31%)

Etymology

Vivid
adjective

From the Latin vividus, full of life — used as a color modifier since the late sixteenth century for hues that read as luminous and saturated. Vivid red, vivid blue: the implication is that the color appears almost lit from within, with the optical brightness of a high-chroma surface in good light. Sits at the bright-bucket center alongside bright and electric.

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.

#40b131
Original
#b5a11b
Protanopia
#a8973e
Deuteranopia
#2cab98
Tritanopia
#909090
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
2.78:1
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
7.55:1

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
##40B131
Display P3
Display P3
color(display-p3 0.3814 0.6849 0.2732)
P3 has visible headroomOKLCH chroma 0.194

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.

Related Colors

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