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Sizzling Thor Sky

#389de1
Notes

Sizzling Thor Sky (#389DE1) is a true azure with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (204°, 74%, 55%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#389de1
RGB
rgb(56, 157, 225)
HSL
hsl(204, 74%, 55%)
HWB
hwb(204 22% 12%)
OKLCH
oklch(66.9% 0.136 242.6)
P3
color(display-p3 0.3361 0.6074 0.8600)
HSV
hsv(204, 75%, 88%)
LAB
lab(61.99% -6.36 -42.68)
LCH
lch(61.99% 43.15 261.52)
CMYK
cmyk(75%, 30%, 0%, 12%)

Etymology

Sizzling
adjective

Imitative-onomatopoeic origin — present-participle of sizzle, with sound-and-action mimicry. As a color modifier, sizzling implies a saturated-and-hot-and-active quality, the bright color of Spanish-tapas-tapa hot-griddle iron-skillet surface-emission. Sits at the bright-and-warm end of the grid, parallel to searing and scorching in usage.

Thor
modifier

Old Norse Þórr, god-of-thunder-and-Mjölnir. As a color modifier, thor implies a hammer-Mjölnir-and-thunderbolt-and-red-bearded quality, the visual register of Norse-Thor-and-Mjölnir-hammer hand-hammer-Mjölnir-and-thunderbolt-and-red-bearded Norse-Thor-and-Mjölnir-hammer-and-Asgard thor-and-hammer-Mjölnir-and-thunderbolt surfaces under Norse-Thor-and-Mjölnir-hammer-and-Asgard Bilskirnir-and-Thrudheim-and-thunder-cart thunder-storm-light. Sits at the modifier-and-myth end of the grid, parallel to odin and loki in usage.

Sky
noun

The blue of a clear sky at noon — produced by Rayleigh scattering, the preferential dispersion of shorter wavelengths through atmospheric molecules. Air itself is colorless; the color we see is sunlight scattered toward our eyes by every cubic kilometer above. The reference shade is mid-latitude noon under a high pressure system: a clean, slightly green-shifted blue with the luminous depth of light scattered across an entire hemisphere of air.

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.

#389de1
Original
#7d9fe4
Protanopia
#668fe0
Deuteranopia
#00aeb5
Tritanopia
#8c8c8c
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).
Failon White
2.97:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
7.08:1

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
##389DE1
Display P3
Display P3
color(display-p3 0.3361 0.6074 0.8600)
P3 has subtle headroomOKLCH chroma 0.136

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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