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Buzzing Cornwall

#87bc51
Notes

Buzzing Cornwall (#87BC51) is a true lime 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 (90°, 44%, 53%) 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#87bc51
RGB
rgb(135, 188, 81)
HSL
hsl(90, 44%, 53%)
HWB
hwb(90 32% 26%)
OKLCH
oklch(73.5% 0.149 131.2)
HSV
hsv(90, 57%, 74%)
LAB
lab(70.67% -35.21 47.81)
LCH
lch(70.67% 59.38 126.36)
CMYK
cmyk(28%, 0%, 57%, 26%)

Etymology

Buzzing
adjective

The progressive participle of buzz — borrowed metaphorically as a color word since the late twentieth century for hues that read as visually loud and slightly destabilizing. Buzzing yellow, buzzing magenta: the implication is saturation pushed past comfortable into the realm of optical agitation. Sits at the bright-bucket extreme alongside electric.

Cornwall
noun

The southwestern English county — and the rolling green hills of Cornish moors and the Cornish Heritage Coast hedgerows. Cornwall color refers to a Cornish hillside in late spring: a saturated, slightly cool deep yellow-green with the matte finish of grazed pasture grass. Drier than verdant.

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.

#87bc51
Original
#c4af46
Protanopia
#bcac58
Deuteranopia
#89b5a5
Tritanopia
#a9a9a9
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
2.25:1
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
9.34:1

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