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Knightly Picotee

#0a3fbf
Notes

Knightly Picotee (#0A3FBF) is a true azure 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 (222°, 90%, 39%) 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
#0a3fbf
RGB
rgb(10, 63, 191)
HSL
hsl(222, 90%, 39%)
HWB
hwb(222 4% 25%)
OKLCH
oklch(43.3% 0.206 263.3)
P3
color(display-p3 0.1081 0.2431 0.7207)
HSV
hsv(222, 95%, 75%)
LAB
lab(32.66% 36.16 -70.52)
LCH
lch(32.66% 79.25 297.14)
CMYK
cmyk(95%, 67%, 0%, 25%)

Etymology

Knightly
adjective

Old English cniht, young man / knight — adjectival suffix -ly. As a color modifier, knightly implies a saturated-and-chivalrous-and-medieval quality, the deep-rich color of medieval-English-and-French knight-and-squire armorial-bearings-and-livery tradition. Sits at the bold-and-chivalrous end of the grid, parallel to gallant and cavalier.

Picotee
noun

A botanical term for a flower with edges colored differently from the body — Picotee roses, Picotee sweet peas, Picotee dahlias all have a crisp white or contrasting band along the petal margin. The color Picotee blue refers to a saturated body-color blue used as the dominant petal field: a saturated, slightly violet-shifted deep blue with the matte finish of high-density flower petal. Cooler than royal, warmer than indigo.

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.

#0a3fbf
Original
#0055c3
Protanopia
#0045bd
Deuteranopia
#006279
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
8.48:1
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

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
##0A3FBF
Display P3
Display P3
color(display-p3 0.1081 0.2431 0.7207)
P3 has visible headroomOKLCH chroma 0.206

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

Related Colors

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