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Punchy Cobalto

#2648b0
Notes

Punchy Cobalto (#2648B0) is a true blue with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (225°, 64%, 42%) 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
#2648b0
RGB
rgb(38, 72, 176)
HSL
hsl(225, 64%, 42%)
HWB
hwb(225 15% 31%)
OKLCH
oklch(44.4% 0.170 265.8)
HSV
hsv(225, 78%, 69%)
LAB
lab(34.36% 26.25 -58.85)
LCH
lch(34.36% 64.44 294.04)
CMYK
cmyk(78%, 59%, 0%, 31%)

Etymology

Punchy
adjective

A modern adjectival form of punch, to strike sharply. Used as a color word since the early twentieth century for hues that read as highly contrasting and visually loud. Punchy red, punchy yellow: the implication is full saturation combined with optical impact. Sits across the bold and bright buckets, near vivid and striking.

Cobalto
noun

The Italian word for cobalt — used for the saturated deep blue of cobalto-glaze on Tuscan and Venetian Renaissance ceramics. The color refers to a cobalto-glazed Tuscan piatto: a saturated, slightly cool deep blue with the high gloss of cobalt-glazed porcelain. The Italian cousin of cobalt.

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.

#2648b0
Original
#0057b3
Protanopia
#004bae
Deuteranopia
#006275
Tritanopia
#484848
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
7.97:1
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
2.64:1

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