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Smooth Forgetmenot

#1577ac
Notes

Smooth Forgetmenot (#1577AC) is a true azure with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (201°, 78%, 38%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#1577ac
RGB
rgb(21, 119, 172)
HSL
hsl(201, 78%, 38%)
HWB
hwb(201 8% 33%)
OKLCH
oklch(54.3% 0.117 239.7)
HSV
hsv(201, 88%, 67%)
LAB
lab(47.40% -7.06 -35.59)
LCH
lch(47.40% 36.29 258.79)
CMYK
cmyk(88%, 31%, 0%, 33%)

Etymology

Smooth
adjective

Old English smōþ, level, polished — used as a color modifier since the seventeenth century for hues that read as continuous without texture or break. Smooth tan, smooth gray: moderate saturation combined with optical evenness. Sits in the crisp-bucket alongside even.

Forgetmenot
noun

Myosotis sylvatica, the European forget-me-not — a small woodland-and-streamside wildflower whose pale blue five-petaled flowers symbolize remembrance and faithful love in European folk tradition. The color refers to a fresh forget-me-not flower: a soft, slightly cool pale blue with the matte finish of small five-petaled flower with yellow center.

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.

#1577ac
Original
#5e78ae
Protanopia
#496bab
Deuteranopia
#00848a
Tritanopia
#666666
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
4.92:1
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
4.27:1

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