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Confident Court Ultramarine

#2542af
Notes

Confident Court Ultramarine (#2542AF) is a true blue with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (227°, 65%, 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
#2542af
RGB
rgb(37, 66, 175)
HSL
hsl(227, 65%, 42%)
HWB
hwb(227 15% 31%)
OKLCH
oklch(43.1% 0.177 266.9)
HSV
hsv(227, 79%, 69%)
LAB
lab(32.66% 29.74 -61.01)
LCH
lch(32.66% 67.88 295.99)
CMYK
cmyk(79%, 62%, 0%, 31%)

Etymology

Confident
adjective

A late-Latin participle, confidens, trusting — borrowed into English in the sixteenth century. As a color modifier, confident implies saturation combined with poise: a confident red doesn't try too hard, just sits at the level of its hue without overreaching. Sits in the bold-bucket center near bold and resolute.

Court
modifier

Old French cort, enclosed-yard. As a color modifier, court implies an enclosed-courtyard quality, the visual register of Inn-of-Court-and-Chinese-courtyard hand-built stone-and-tile-paved enclosed-and-formal courtyard-architecture surfaces under London-Inn-of-Court-and-Chinese-courtyard enclosed-formal architecture light. Sits at the modifier-and-place end of the grid, parallel to quad and yard in usage.

Ultramarine
noun

The pigment ground from lapis lazuli — the Afghan mineral imported through Venice in the late Middle Ages, more expensive by weight than gold during the Renaissance. The color refers to a freshly mixed ultramarine pigment in linseed oil: a saturated, slightly violet-shifted deep blue with the matte finish of micron-ground rock. Deeper than cobalt, cooler than royal, with the art-historical weight of the blue Vermeer reserved for Mary's robe.

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

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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.

#2542af
Original
#0053b3
Protanopia
#0047ad
Deuteranopia
#005e72
Tritanopia
#444444
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
8.48:1
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
2.48:1

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