colors
Back to gallery

Unwavering Bluestar

#3878e7
Notes

Unwavering Bluestar (#3878E7) is a true azure with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (218°, 78%, 56%) 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
#3878e7
RGB
rgb(56, 120, 231)
HSL
hsl(218, 78%, 56%)
HWB
hwb(218 22% 9%)
OKLCH
oklch(59.1% 0.181 260.6)
HSV
hsv(218, 76%, 91%)
LAB
lab(51.88% 17.92 -62.11)
LCH
lch(51.88% 64.64 286.09)
CMYK
cmyk(76%, 48%, 0%, 9%)

Etymology

Unwavering
adjective

Old English un- (negation) plus wafrian (to flicker). As a color modifier, unwavering implies a saturated-and-constant quality where the hue maintains its full strength without flicker or shift. Sits at the bold-and-firm end of the grid, parallel to steadfast and firm in usage.

Bluestar
noun

The genus Amsoniabluestar, North American and East Asian native perennials with clusters of pale-blue star-shaped flowers in late spring. A. tabernaemontana and A. hubrichtii are signature pollinator-garden plants. The color refers to a fresh Amsonia flower cluster: a soft, slightly cool pale blue with the matte finish of small five-petaled stars.

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.

#3878e7
Original
#3884eb
Protanopia
#0074e5
Deuteranopia
#0093a4
Tritanopia
#727272
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).
AA Largeon White
4.19:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.01:1

Related Colors

Canvas