colors
Back to gallery

Lordly Skullcap

#0a42a8
Notes

Lordly Skullcap (#0A42A8) 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 (219°, 89%, 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
#0a42a8
RGB
rgb(10, 66, 168)
HSL
hsl(219, 89%, 35%)
HWB
hwb(219 4% 34%)
OKLCH
oklch(41.7% 0.173 261.6)
HSV
hsv(219, 94%, 66%)
LAB
lab(31.32% 25.11 -59.07)
LCH
lch(31.32% 64.18 293.03)
CMYK
cmyk(94%, 61%, 0%, 34%)

Etymology

Lordly
adjective

Old English hlāford-līc, lord-like — adjectival suffix -ly. As a color modifier, lordly implies a saturated-and-aristocratic-and-haughty quality, the deep-rich color of pre-modern English-and-French manorial-aristocracy livery and hereditary-estate household-textile. Sits at the bold-and-aristocratic end of the grid, parallel to princely and patrician.

Skullcap
noun

The genus Scutellariaskullcap, mint-family perennials whose helmet-shaped blue flowers and herbal medicinal properties have been used in Chinese, North American, and European traditional medicine. The color refers to a fresh S. baicalensis bloom: a saturated, slightly cool deep blue-violet with the matte finish of bilateral bracted flower.

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.

#0a42a8
Original
#0051ab
Protanopia
#0043a6
Deuteranopia
#005d6e
Tritanopia
#3d3d3d
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
8.91:1
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
2.36:1

Related Colors

Canvas