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Frank Anodorhynchus

#4261a6
Notes

Frank Anodorhynchus (#4261A6) is a true azure with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (221°, 43%, 45%) 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
#4261a6
RGB
rgb(66, 97, 166)
HSL
hsl(221, 43%, 45%)
HWB
hwb(221 26% 35%)
OKLCH
oklch(50.3% 0.116 264.4)
P3
color(display-p3 0.2850 0.3771 0.6317)
HSV
hsv(221, 60%, 65%)
LAB
lab(41.94% 10.51 -40.63)
LCH
lch(41.94% 41.97 284.51)
CMYK
cmyk(60%, 42%, 0%, 35%)

Etymology

Frank
adjective

From the Old French franc, free, sincere — used as a color modifier since the seventeenth century for hues that read as direct and unhedged. Frank red, frank brown: moderate-to-high saturation combined with optical directness. Sits at the crisp-bucket alongside direct and honest.

Anodorhynchus
noun

The genus Anodorhynchus — particularly A. hyacinthinus (hyacinth macaw), the largest of all parrot species, native to central South America. The plumage is the most saturated true blue of any parrot. The color refers to a male A. hyacinthinus in adult plumage: a saturated, slightly cool deep blue with the matte finish of structurally-and-pigment-colored macaw feathers.

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.

#4261a6
Original
#4368a9
Protanopia
#355fa5
Deuteranopia
#00707b
Tritanopia
#5f5f5f
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).
AAon White
6.01:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.49:1

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
##4261A6
Display P3
Display P3
color(display-p3 0.2850 0.3771 0.6317)
P3 has subtle headroomOKLCH chroma 0.116

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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