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Chivalrous Onando

#2c4cbd
Notes

Chivalrous Onando (#2C4CBD) is a true blue 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 (227°, 62%, 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#2c4cbd
RGB
rgb(44, 76, 189)
HSL
hsl(227, 62%, 46%)
HWB
hwb(227 17% 26%)
OKLCH
oklch(46.5% 0.181 266.9)
HSV
hsv(227, 77%, 74%)
LAB
lab(36.70% 29.17 -62.68)
LCH
lch(36.70% 69.14 294.95)
CMYK
cmyk(77%, 60%, 0%, 26%)

Etymology

Chivalrous
adjective

Old French chevaleros, knightly — adjectival suffix -ous, derived from cheval (horse). As a color modifier, chivalrous implies a saturated-and-knightly-and-gallant quality, the deep-rich color of medieval-Romance chanson-de-geste hero-and-troubadour song tradition. Sits at the bold-and-chivalrous end of the grid, parallel to gallant and knightly.

Onando
noun

Japanese onando-iro (御納戸色) — honored storehouse color, the saturated grayed-blue of pre-modern Japanese clothing storehouse interiors. Traditional Edo-period onando was used in samurai household interiors and the linings of formal court dress. The color refers to a onando-painted Edo storehouse wall: a saturated, slightly cool deep blue-gray with the matte finish of weathered distemper paint.

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

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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.

#2c4cbd
Original
#005dc1
Protanopia
#0050bb
Deuteranopia
#00697d
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
7.30:1
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
2.88:1

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