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Poised Blueschist

#1b4cb8
Notes

Poised Blueschist (#1B4CB8) 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 (221°, 74%, 41%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#1b4cb8
RGB
rgb(27, 76, 184)
HSL
hsl(221, 74%, 41%)
HWB
hwb(221 11% 28%)
OKLCH
oklch(45.5% 0.179 262.9)
HSV
hsv(221, 85%, 72%)
LAB
lab(35.72% 25.71 -61.37)
LCH
lch(35.72% 66.54 292.73)
CMYK
cmyk(85%, 59%, 0%, 28%)

Etymology

Poised
adjective

Old French peser, to weigh — past-participle of poise. As a color modifier, poised implies a saturated-and-balanced-and-confident quality where the hue holds its position with elegant equilibrium. Sits at the bold-and-confident end of the grid, parallel to centered and composed.

Blueschist
noun

A metamorphic rock — formed under low-temperature high-pressure conditions in subduction zones — characterized by the deep blue of glaucophane amphibole. The color refers to a freshly cut blueschist specimen: a soft, slightly cool deep blue with the metallic-gray-fibrous finish of crystallized amphibole.

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.

#1b4cb8
Original
#005bbc
Protanopia
#004db6
Deuteranopia
#00687a
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
7.57:1
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
2.77:1

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