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Solemn Velveteen

#631c51
Notes

Solemn Velveteen (#631C51) is a deep magenta 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 (315°, 56%, 25%) 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#631c51
RGB
rgb(99, 28, 81)
HSL
hsl(315, 56%, 25%)
HWB
hwb(315 11% 61%)
OKLCH
oklch(36.0% 0.120 339.5)
P3
color(display-p3 0.3570 0.1302 0.3092)
HSV
hsv(315, 72%, 39%)
LAB
lab(23.93% 37.94 -15.62)
LCH
lch(23.93% 41.03 337.63)
CMYK
cmyk(0%, 72%, 18%, 61%)

Etymology

Solemn
adjective

Latin sollemnis, consecrated / annual. As a color modifier, solemn implies a deep-and-formal seriousness where the hue carries ceremonial weight, used in requiem-and-vespers religious-textile contexts. Sits at the deep-and-formal end of the grid, parallel to grave and austere in tone.

Velveteen
noun

Velveteen — a cotton-pile imitation of silk velvet developed in late-Victorian England (c. 1880s), often dyed in deep-magenta synthetic fuchsine for women's day-dresses. Velveteen color refers to a Liberty-of-London Edwardian-period velveteen day-dress: a saturated, slightly cool deep magenta with the velvet finish of synthetic-dyed cotton pile. Warmer than silk velvet, cooler than cotton-blend corduroy.

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.

#631c51
Original
#203253
Protanopia
#363d4f
Deuteranopia
#691e33
Tritanopia
#2f2f2f
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
11.57:1
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
1.82:1

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
##631C51
Display P3
Display P3
color(display-p3 0.3570 0.1302 0.3092)
P3 has subtle headroomOKLCH chroma 0.120

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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