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Plumbed Banafsheh

#280c51
Notes

Plumbed Banafsheh (#280C51) is a deep indigo with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (264°, 74%, 18%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#280c51
RGB
rgb(40, 12, 81)
HSL
hsl(264, 74%, 18%)
HWB
hwb(264 5% 68%)
OKLCH
oklch(25.0% 0.115 295.0)
P3
color(display-p3 0.1433 0.0535 0.3046)
HSV
hsv(264, 85%, 32%)
LAB
lab(11.33% 30.72 -36.31)
LCH
lch(11.33% 47.56 310.23)
CMYK
cmyk(51%, 85%, 0%, 68%)

Etymology

Plumbed
adjective

Latin plumbum, lead — past-participle of plumb (to measure depth with a lead-weighted line). As a color modifier, plumbed implies a deep-and-cool quality measured-to-its-fullest-depth, the dark cool-gray of lead-and-pewter metallic surfaces. Sits at the deep-and-cool end of the grid, parallel to fathomless with metallic register.

Banafsheh
noun

Persian بنفشه, the Viola odorata sweet violet — the diminutive of banafsh, used for the flower itself rather than the color. Banafsheh is a stock floral motif in Iranian poetry (Hafez, Rumi) symbolizing transient beauty. Banafsheh color refers to a freshly opened Viola odorata petal: a saturated, slightly cool deep blue-violet with the velvet finish of a fresh viola petal.

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.

#280c51
Original
#001f53
Protanopia
#001d50
Deuteranopia
#1c1f2e
Tritanopia
#171717
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).
AAAon White
16.65:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
1.26:1

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
##280C51
Display P3
Display P3
color(display-p3 0.1433 0.0535 0.3046)
P3 has subtle headroomOKLCH chroma 0.115

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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