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Regal Tsutsuji

#a33587
Notes

Regal Tsutsuji (#A33587) is a true magenta 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 (315°, 51%, 42%) 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a33587
RGB
rgb(163, 53, 135)
HSL
hsl(315, 51%, 42%)
HWB
hwb(315 21% 36%)
OKLCH
oklch(51.7% 0.171 339.5)
HSV
hsv(315, 67%, 64%)
LAB
lab(41.35% 53.88 -22.20)
LCH
lch(41.35% 58.27 337.61)
CMYK
cmyk(0%, 67%, 17%, 36%)

Etymology

Regal
adjective

Latin rēgālis, kingly — derived from rēx (king). As a color modifier, regal implies a saturated-and-royal-formality quality, the deep-rich color of British-Coronation-period royal vestment-and-mantle and Imperial-State-Crown regalia. Sits at the bold-and-imperial end of the grid, parallel to sovereign and royal in usage.

Tsutsuji
noun

Japanese 躑躅, azalea (Rhododendron indicum and R. obtusum) — a beloved spring-flowering shrub of Japanese gardens, particularly the deep-magenta kirishima-tsutsuji cultivars from Kagoshima's Mt. Kirishima. Tsutsuji color refers to a fully bloomed kirishima-tsutsuji terminal truss in a Kyoto temple garden: a saturated, slightly cool deep magenta with the velvet finish of fresh five-petaled bell-flowers in dense terminal clusters.

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

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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.

#a33587
Original
#3b5689
Protanopia
#5d6884
Deuteranopia
#ac3859
Tritanopia
#525252
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
6.15:1
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
3.42:1

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