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Dominant Sapporo

#513790
Notes

Dominant Sapporo (#513790) is a true indigo 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 (258°, 45%, 39%) 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
#513790
RGB
rgb(81, 55, 144)
HSL
hsl(258, 45%, 39%)
HWB
hwb(258 22% 44%)
OKLCH
oklch(41.6% 0.140 292.7)
P3
color(display-p3 0.3024 0.2200 0.5450)
HSV
hsv(258, 62%, 56%)
LAB
lab(30.63% 33.41 -45.44)
LCH
lch(30.63% 56.40 306.33)
CMYK
cmyk(44%, 62%, 0%, 44%)

Etymology

Dominant
adjective

Latin dominārī, to rule — present-participle of dominate. As a color modifier, dominant implies a saturated-and-leading quality where the hue claims visual precedence over neighboring colors in the surrounding palette. Sits at the bold-and-imperative end of the grid, parallel to commanding and authoritative.

Sapporo
noun

Capital of Japan's Hokkaido island — a city famous for its annual February Yuki Matsuri (Snow Festival) with deep-twilight blue lighting on illuminated snow sculptures along the Ōdōri Park boulevard. Sapporo color refers to a Yuki Matsuri night-sky over an illuminated snow sculpture: a saturated, slightly cool deep blue-violet with the optical complexity of artificial illumination on snow-reflected sky.

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.

#513790
Original
#004993
Protanopia
#00468e
Deuteranopia
#404b5e
Tritanopia
#434343
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
9.13:1
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
2.30:1

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
##513790
Display P3
Display P3
color(display-p3 0.3024 0.2200 0.5450)
P3 has subtle headroomOKLCH chroma 0.140

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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