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Wholesome Yangtze

#1f4c6d
Notes

Wholesome Yangtze (#1F4C6D) is a deep azure 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 (205°, 56%, 27%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1f4c6d
RGB
rgb(31, 76, 109)
HSL
hsl(205, 56%, 27%)
HWB
hwb(205 12% 57%)
OKLCH
oklch(40.1% 0.074 243.5)
P3
color(display-p3 0.1684 0.2941 0.4165)
HSV
hsv(205, 72%, 43%)
LAB
lab(30.79% -3.62 -23.57)
LCH
lch(30.79% 23.85 261.27)
CMYK
cmyk(72%, 30%, 0%, 57%)

Etymology

Wholesome
adjective

An adjectival form of whole — used as a color modifier since the sixteenth century for hues that read as healthy and unadulterated. Wholesome cream, wholesome wheat: moderate saturation combined with the optical impression of a natural origin. Sits at the crisp-bucket alongside genuine.

Yangtze
noun

The Chinese Cháng Jiāng — the longest river in Asia and the third-longest in the world. Yangtze color refers to mid-depth Yangtze River water at the Three Gorges: a saturated, slightly cool deep blue with the optical complexity of glacier-fed Tibetan-Plateau-source river water.

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.

#1f4c6d
Original
#3d4d6e
Protanopia
#32456c
Deuteranopia
#005458
Tritanopia
#454545
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
9.08:1
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
2.31:1

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
##1F4C6D
Display P3
Display P3
color(display-p3 0.1684 0.2941 0.4165)
Inside sRGBOKLCH chroma 0.074

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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