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Commanding Cynoglossum

#2a4ab4
Notes

Commanding Cynoglossum (#2A4AB4) 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 (226°, 62%, 44%) 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
#2a4ab4
RGB
rgb(42, 74, 180)
HSL
hsl(226, 62%, 44%)
HWB
hwb(226 16% 29%)
OKLCH
oklch(45.3% 0.172 266.5)
P3
color(display-p3 0.1938 0.2870 0.6806)
HSV
hsv(226, 77%, 71%)
LAB
lab(35.37% 26.88 -59.56)
LCH
lch(35.37% 65.34 294.29)
CMYK
cmyk(77%, 59%, 0%, 29%)

Etymology

Commanding
adjective

Latin commendāre, to entrust / order — present-participle of command. As a color modifier, commanding implies a saturated-and-authoritative quality where the hue claims visual leadership of its surrounding palette. Sits at the bold-and-authoritative end of the grid, parallel to authoritative and imperial in usage.

Cynoglossum
noun

The genus CynoglossumChinese forget-me-not or hound's-tongue, biennial members of the borage family with deep-blue forget-me-not-style flowers in early summer. The color refers to a fresh C. amabile in May: a saturated, slightly cool deep blue with the matte finish of small five-petaled flowers.

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.

#2a4ab4
Original
#005ab8
Protanopia
#004db2
Deuteranopia
#006578
Tritanopia
#4b4b4b
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
7.67:1
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
2.74:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##2A4AB4
Display P3
Display P3
color(display-p3 0.1938 0.2870 0.6806)
P3 has subtle headroomOKLCH chroma 0.172

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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