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Bold Konjō

#3379e3
Notes

Bold Konjō (#3379E3) 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 (216°, 76%, 55%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#3379e3
RGB
rgb(51, 121, 227)
HSL
hsl(216, 76%, 55%)
HWB
hwb(216 20% 11%)
OKLCH
oklch(58.9% 0.176 258.8)
HSV
hsv(216, 78%, 89%)
LAB
lab(51.75% 15.27 -60.09)
LCH
lch(51.75% 62.00 284.25)
CMYK
cmyk(78%, 47%, 0%, 11%)

Etymology

Bold
adjective

Old English beald, brave, courageous — a quality word that crossed over to color in the late seventeenth century. Bold describes a color that asserts itself: high saturation combined with mid lightness, where the hue presents itself without compromise. Sits at the center of the bold-bucket grid, near strong and rich. Closer to a presence word than a pigment word.

Konjō
noun

Japanese konjō (紺青) — deep blue-azure, the saturated deep navy used in Edo-period samurai inner robes and Buddhist mandala backgrounds. Distinct from konpeki by its slightly cooler shift toward navy. The color refers to a konjō-dyed silk: a saturated, slightly cool dark blue with the satin finish of multi-bath dyed silk.

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.

#3379e3
Original
#3e84e7
Protanopia
#0574e1
Deuteranopia
#0092a3
Tritanopia
#727272
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
4.21:1
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
4.98:1

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