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Authoritative Iconography

#4347aa
Notes

Authoritative Iconography (#4347AA) is a true blue 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 (238°, 43%, 46%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#4347aa
RGB
rgb(67, 71, 170)
HSL
hsl(238, 43%, 46%)
HWB
hwb(238 26% 33%)
OKLCH
oklch(45.3% 0.156 276.5)
P3
color(display-p3 0.2656 0.2779 0.6434)
HSV
hsv(238, 61%, 67%)
LAB
lab(35.20% 28.87 -53.82)
LCH
lch(35.20% 61.08 298.21)
CMYK
cmyk(61%, 58%, 0%, 33%)

Etymology

Authoritative
adjective

Latin auctōritāt-, authority — adjectival suffix -ive. As a color modifier, authoritative implies a saturated-and-formal-imperative quality where the hue carries decisional weight and institutional credibility. Sits at the bold-and-authoritative end of the grid, parallel to commanding and magisterial in usage.

Iconography
noun

Greek eikonographia, image-writing — adopted into Western art history as the technical term for image-symbolism, particularly the deep-violet-and-gold Russian-school and Greek-school religious panels of Theotokos (Mother of God) icons. Iconography color refers to a Russian-school Theotokos of Vladimir icon's deep-blue robe field: a saturated, slightly cool deep blue-violet with the matte finish of egg-tempera-bound ultramarine over gesso.

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.

#4347aa
Original
#0057ad
Protanopia
#004ea8
Deuteranopia
#005f71
Tritanopia
#4d4d4d
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
7.72:1
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
2.72:1

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
##4347AA
Display P3
Display P3
color(display-p3 0.2656 0.2779 0.6434)
P3 has subtle headroomOKLCH chroma 0.156

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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