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Ruminative Sapporo

#4b455b
Notes

Ruminative Sapporo (#4B455B) is a deep 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 (256°, 14%, 31%) places it in the muted 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#4b455b
RGB
rgb(75, 69, 91)
HSL
hsl(256, 14%, 31%)
HWB
hwb(256 27% 64%)
OKLCH
oklch(40.5% 0.037 297.2)
P3
color(display-p3 0.2901 0.2714 0.3505)
HSV
hsv(256, 24%, 36%)
LAB
lab(30.66% 7.65 -12.10)
LCH
lch(30.66% 14.31 302.29)
CMYK
cmyk(18%, 24%, 0%, 64%)

Etymology

Ruminative
adjective

Latin rūminātīvus, chewing-cud-like — adjectival suffix -ive. As a color modifier, ruminative implies a hushed-and-thoughtful-and-meditative quality where the hue carries the visual register of slow-and-careful-thoughtful interior-design-element. Sits at the hushed-and-still end of the grid, parallel to meditative and contemplative in usage.

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.

#4b455b
Original
#40485c
Protanopia
#41485a
Deuteranopia
#48484d
Tritanopia
#484848
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
9.12:1
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
##4B455B
Display P3
Display P3
color(display-p3 0.2901 0.2714 0.3505)
Inside sRGBOKLCH chroma 0.037

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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