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Bold Vespers

#8a37cc
Notes

Bold Vespers (#8A37CC) is a true 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 (273°, 59%, 51%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#8a37cc
RGB
rgb(138, 55, 204)
HSL
hsl(273, 59%, 51%)
HWB
hwb(273 22% 20%)
OKLCH
oklch(52.7% 0.218 305.4)
P3
color(display-p3 0.5019 0.2358 0.7717)
HSV
hsv(273, 73%, 80%)
LAB
lab(41.99% 60.45 -62.44)
LCH
lch(41.99% 86.91 314.07)
CMYK
cmyk(32%, 73%, 0%, 20%)

Etymology

Bold
adjective

Old English beald, brave, courageous — a quality word that crossed over to color in the late seventeenth century. Bold describes a color that asserts itself: high saturation combined with mid lightness, where the hue presents itself without compromise. Sits at the center of the bold-bucket grid, near strong and rich. Closer to a presence word than a pigment word.

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.

#8a37cc
Original
#0061d0
Protanopia
#0063c9
Deuteranopia
#7e5b7f
Tritanopia
#535353
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
6.00:1
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
3.50:1

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
##8A37CC
Display P3
Display P3
color(display-p3 0.5019 0.2358 0.7717)
P3 has visible headroomOKLCH chroma 0.218

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.

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