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Resilient Lapwing

#1550a0
Notes

Resilient Lapwing (#1550A0) 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 (215°, 77%, 35%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1550a0
RGB
rgb(21, 80, 160)
HSL
hsl(215, 77%, 35%)
HWB
hwb(215 8% 37%)
OKLCH
oklch(44.3% 0.143 257.8)
P3
color(display-p3 0.1535 0.3091 0.6064)
HSV
hsv(215, 87%, 63%)
LAB
lab(34.87% 12.94 -48.48)
LCH
lch(34.87% 50.18 284.95)
CMYK
cmyk(87%, 50%, 0%, 37%)

Etymology

Resilient
adjective

Latin resiliēns, springing-back — present-participle of resilīre. As a color modifier, resilient implies a saturated-and-recovering-and-flexible quality where the hue maintains its strength under visual pressure. Sits at the bold-and-resilient end of the grid, parallel to tough and hardy in usage.

Lapwing
noun

The genus Vanellusplover relatives — particularly V. vanellus (northern lapwing), whose males display iridescent blue-black plumage on back and crest. The color refers to a male northern lapwing in breeding plumage: a saturated, slightly cool dark blue-green with the iridescent satin finish of structurally colored feathers.

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.

#1550a0
Original
#1f59a3
Protanopia
#004c9e
Deuteranopia
#006370
Tritanopia
#494949
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
7.82:1
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
2.69:1

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
##1550A0
Display P3
Display P3
color(display-p3 0.1535 0.3091 0.6064)
P3 has subtle headroomOKLCH chroma 0.143

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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