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Reliable Yangtze

#b1cfed
Notes

Reliable Yangtze (#B1CFED) is a soft azure with a pastel character. It reads calm and airy, with enough chroma to feel intentional rather than washed out. Its HSL profile (210°, 63%, 81%) places it in the balanced band at a light lightness. It works as a background wash, large-area fill, or soft illustration tone. Add a darker ink of the same hue when you need type over it. 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
#b1cfed
RGB
rgb(177, 207, 237)
HSL
hsl(210, 63%, 81%)
HWB
hwb(210 69% 7%)
OKLCH
oklch(84.2% 0.053 248.5)
P3
color(display-p3 0.7169 0.8082 0.9181)
HSV
hsv(210, 25%, 93%)
LAB
lab(81.88% -3.43 -18.07)
LCH
lch(81.88% 18.39 259.24)
CMYK
cmyk(25%, 13%, 0%, 7%)

Etymology

Reliable
adjective

Latin re-ligāre, to bind back — adjectival suffix -able. As a color modifier, reliable implies a clear-and-trustworthy-and-consistent quality where the hue carries the visual register of dependable-and-consistent design-element. Sits at the crisp-and-honest end of the grid, parallel to dependable and trustworthy in usage.

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.

#b1cfed
Original
#c4cfef
Protanopia
#bcc9ec
Deuteranopia
#a0d6d9
Tritanopia
#cbcbcb
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).
Failon White
1.61:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
13.02:1

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
##B1CFED
Display P3
Display P3
color(display-p3 0.7169 0.8082 0.9181)
Inside sRGBOKLCH chroma 0.053

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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