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Flashing Marjoram

#51b420
Notes

Flashing Marjoram (#51B420) is a true green with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (100°, 70%, 42%) 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
#51b420
RGB
rgb(81, 180, 32)
HSL
hsl(100, 70%, 42%)
HWB
hwb(100 13% 29%)
OKLCH
oklch(68.4% 0.199 138.0)
P3
color(display-p3 0.4219 0.6972 0.2417)
HSV
hsv(100, 82%, 71%)
LAB
lab(65.35% -53.39 60.25)
LCH
lch(65.35% 80.50 131.55)
CMYK
cmyk(55%, 0%, 82%, 29%)

Etymology

Flashing
adjective

Old English flasch, flash — present-participle of flash. As a color modifier, flashing implies a saturated-and-rapid-on-off quality, the bright color of emergency-vehicle and photographic-flash light-burst surfaces. Sits at the bright-and-flashing end of the grid, parallel to coruscating and flickering in usage.

Marjoram
noun

Origanum majorana, the Mediterranean culinary herb related to oregano — sweeter, milder, used in French Provence herb mixes and traditional Roman sausages. The color refers to fresh-picked marjoram leaves: a soft, slightly muted yellow-green with the matte finish of small mint-family leaves. Cooler than oregano.

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.

#51b420
Original
#baa400
Protanopia
#ad9c33
Deuteranopia
#48ad99
Tritanopia
#949494
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
2.66:1
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
7.90:1

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
##51B420
Display P3
Display P3
color(display-p3 0.4219 0.6972 0.2417)
P3 has visible headroomOKLCH chroma 0.199

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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