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Anchored Hermes Sapphire

#427ad1
Notes

Anchored Hermes Sapphire (#427AD1) 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 (217°, 61%, 54%) 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
#427ad1
RGB
rgb(66, 122, 209)
HSL
hsl(217, 61%, 54%)
HWB
hwb(217 26% 18%)
OKLCH
oklch(58.5% 0.146 259.0)
P3
color(display-p3 0.3121 0.4731 0.7951)
HSV
hsv(217, 68%, 82%)
LAB
lab(51.47% 10.05 -50.34)
LCH
lch(51.47% 51.33 281.29)
CMYK
cmyk(68%, 42%, 0%, 18%)

Etymology

Anchored
adjective

The past participle of anchor, used since the late nineteenth century as a metaphor for secured in place. As a color word, anchored implies a deep saturated tone that grounds a palette — the dark blues, deep greens, and browns that hold a composition together. Sits in the bold-and-deep corner of the grid alongside solid.

Hermes
modifier

Greek Ἑρμῆς, messenger-of-the-Olympian-gods. As a color modifier, hermes implies a winged-sandal-and-caduceus-and-messenger quality, the visual register of Praxiteles-Hermes-and-Olympia-marble hand-winged-sandal-and-caduceus-and-messenger Praxiteles-Hermes-and-Olympia-marble-and-Hellenistic-bronze hermes-and-winged-sandal-and-caduceus surfaces under Praxiteles-Hermes-and-Olympia-marble-and-Hellenistic-bronze Olympian-pantheon-and-marketplace Mediterranean-marble-light. Sits at the modifier-and-myth end of the grid, parallel to zeus and atlas in usage.

Sapphire
noun

An iron-and-titanium-bearing corundum — the same mineral as ruby, hardness 9 on the Mohs scale, mined for two millennia from Sri Lanka, Burma, Madagascar, and the Cashmere mines of British India. The color refers to a fine Kashmir-cut sapphire: a saturated, slightly violet-shifted deep blue with the gem's signature internal velvet — a quality of light scattering in the stone that faceted glass cannot replicate. Cooler than cobalt, deeper than azure.

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.

#427ad1
Original
#5182d4
Protanopia
#3a75cf
Deuteranopia
#008e9b
Tritanopia
#747474
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).
AA Largeon White
4.25:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
4.94:1

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
##427AD1
Display P3
Display P3
color(display-p3 0.3121 0.4731 0.7951)
P3 has subtle headroomOKLCH chroma 0.146

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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