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Workmanlike Eupatorium

#5b51a0
Notes

Workmanlike Eupatorium (#5B51A0) is a true blue 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 (248°, 33%, 47%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#5b51a0
RGB
rgb(91, 81, 160)
HSL
hsl(248, 33%, 47%)
HWB
hwb(248 32% 37%)
OKLCH
oklch(48.4% 0.123 286.6)
P3
color(display-p3 0.3503 0.3190 0.6079)
HSV
hsv(248, 49%, 63%)
LAB
lab(38.98% 24.54 -41.67)
LCH
lch(38.98% 48.36 300.49)
CMYK
cmyk(43%, 49%, 0%, 37%)

Etymology

Workmanlike
adjective

Old English weorcmann, workman — adjectival suffix -like. As a color modifier, workmanlike implies a clear-and-skilled-and-honest quality where the hue carries the visual register of journeyman-craftsman careful-and-competent hand-built craft. Sits at the crisp-and-functional end of the grid, parallel to functional and practical in usage.

Eupatorium
noun

North American native Joe-Pye Weed (Eupatorium purpureum) — a six-foot-tall prairie perennial with terminal corymbs of dusty mauve-violet disk-flowers attractive to Monarchs in their fall migration. Eupatorium color refers to a fully bloomed Joe-Pye Weed corymb: a saturated, slightly cool deep blue-violet with the velvet finish of dense disk-flower clusters. Named for Mithridates Eupator, the herbal-medicine king of Pontus.

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.

#5b51a0
Original
#315ea3
Protanopia
#305a9e
Deuteranopia
#476171
Tritanopia
#595959
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
6.71:1
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
3.13:1

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
##5B51A0
Display P3
Display P3
color(display-p3 0.3503 0.3190 0.6079)
P3 has subtle headroomOKLCH chroma 0.123

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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