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Susurrant Cleome

#645771
Notes

Susurrant Cleome (#645771) is a true indigo 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 (270°, 13%, 39%) places it in the muted 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#645771
RGB
rgb(100, 87, 113)
HSL
hsl(270, 13%, 39%)
HWB
hwb(270 34% 56%)
OKLCH
oklch(47.9% 0.044 307.4)
P3
color(display-p3 0.3837 0.3430 0.4359)
HSV
hsv(270, 23%, 44%)
LAB
lab(39.10% 10.82 -12.85)
LCH
lch(39.10% 16.80 310.10)
CMYK
cmyk(12%, 23%, 0%, 56%)

Etymology

Susurrant
adjective

Latin susurrans, whispering — present-participle of susurrate. As a color modifier, susurrant implies a hushed-and-whispering-and-soft-rustling quality where the hue carries the visual register of aspen-and-poplar leaf-rustling ambient soft-rustling-color tone. Sits at the hushed-and-soft end of the grid, parallel to whispering and murmuring in usage.

Cleome
noun

Spider flower (Cleome hassleriana) — a tall South American annual cultivated worldwide for its long-stamened pink-and-violet airy racemes. Cleome color refers to a fully bloomed Cleome hassleriana terminal raceme: a saturated, slightly cool deep violet with the velvet finish of fresh four-petaled long-stamened spider-flower corollas. The genus name comes from the Greek kleíō, to enclose, after the bud-cluster structure.

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.

#645771
Original
#535c72
Protanopia
#555c70
Deuteranopia
#625a60
Tritanopia
#5c5c5c
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
6.68:1
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
3.14:1

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
##645771
Display P3
Display P3
color(display-p3 0.3837 0.3430 0.4359)
Inside sRGBOKLCH chroma 0.044

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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