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Murky Vespers

#4b1b68
Notes

Murky Vespers (#4B1B68) is a deep indigo 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 (277°, 59%, 26%) 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
#4b1b68
RGB
rgb(75, 27, 104)
HSL
hsl(277, 59%, 26%)
HWB
hwb(277 11% 59%)
OKLCH
oklch(33.6% 0.131 309.6)
P3
color(display-p3 0.2713 0.1174 0.3930)
HSV
hsv(277, 74%, 41%)
LAB
lab(21.13% 36.72 -35.52)
LCH
lch(21.13% 51.08 315.95)
CMYK
cmyk(28%, 74%, 0%, 59%)

Etymology

Murky
adjective

From Old Norse myrkr, darkness — sharing root with mirkwood. Murky implies low value combined with reduced clarity — the deep brown-greens of pond water, the dim interior of a smoke-blackened bar. Sits at the deep-and-dirtied end of the grid, where the color is both dark and slightly clouded.

Vespers
noun

Latin vesperae, evening prayers — the Catholic and Orthodox liturgical office sung at sunset, traditionally in the deep-violet-and-gold Liturgy of the Presanctified Gifts during Lent. Vespers color refers to a Vespers-period priest's Lenten purple chasuble: a saturated, slightly cool deep violet with the matte finish of vat-dyed liturgical wool-and-silk damask. The hour is sung between None and Compline.

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.

#4b1b68
Original
#00316a
Protanopia
#0c3366
Deuteranopia
#472c3f
Tritanopia
#2b2b2b
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
12.68:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
1.66:1

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
##4B1B68
Display P3
Display P3
color(display-p3 0.2713 0.1174 0.3930)
P3 has subtle headroomOKLCH chroma 0.131

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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