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Hot Niger

#3799dc
Notes

Hot Niger (#3799DC) 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°, 70%, 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#3799dc
RGB
rgb(55, 153, 220)
HSL
hsl(204, 70%, 54%)
HWB
hwb(204 22% 14%)
OKLCH
oklch(65.7% 0.134 242.9)
HSV
hsv(204, 75%, 86%)
LAB
lab(60.57% -5.96 -42.13)
LCH
lch(60.57% 42.55 261.95)
CMYK
cmyk(75%, 30%, 0%, 14%)

Etymology

Hot
adjective

Old English hāt, of high temperature — applied metaphorically to color since the eighteenth century for warm hues at high saturation. Hot pink, hot red: the implication is luminous intensity combined with thermal warmth. Sits in the bright-and-warm corner of the grid, alongside burning and vivid.

Niger
noun

The third-longest river in Africa — flowing through Guinea, Mali, Niger, Benin, and Nigeria to the Gulf of Guinea. Niger color refers to mid-depth Niger River water at Timbuktu in Mali: a saturated, slightly cool deep blue-brown with the optical complexity of West African inland-delta river water.

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.

#3799dc
Original
#7a9bdf
Protanopia
#638bdb
Deuteranopia
#00a9b1
Tritanopia
#898989
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
3.11:1
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
6.75:1

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