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Orderly Aozora

#105a8d
Notes

Orderly Aozora (#105A8D) is a deep azure with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (204°, 80%, 31%) places it in the highly saturated band at a dark 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#105a8d
RGB
rgb(16, 90, 141)
HSL
hsl(204, 80%, 31%)
HWB
hwb(204 6% 45%)
OKLCH
oklch(45.2% 0.107 245.4)
P3
color(display-p3 0.1618 0.3475 0.5371)
HSV
hsv(204, 89%, 55%)
LAB
lab(36.64% -1.77 -34.18)
LCH
lch(36.64% 34.22 267.04)
CMYK
cmyk(89%, 36%, 0%, 45%)

Etymology

Orderly
adjective

Latin ōrdō, order — adjectival suffix -ly. As a color modifier, orderly implies a clear-and-arranged-and-organized quality where the hue carries the visual register of carefully-ordered-and-classified placement. Sits at the crisp-and-orderly end of the grid, parallel to methodical and organized in usage.

Aozora
noun

The Japanese compound for blue sky — used for the high-saturation deep blue of cloudless mid-day sky. Aozora names the brand of children's literacy programs in modern Japan and the literary association of clarity. The color refers to a Tokyo summer aozora at midday: a saturated, slightly cool deep blue with the optical brightness of clean atmosphere.

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.

#105a8d
Original
#425c8f
Protanopia
#30518c
Deuteranopia
#00666d
Tritanopia
#4e4e4e
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
7.32:1
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
2.87:1

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
##105A8D
Display P3
Display P3
color(display-p3 0.1618 0.3475 0.5371)
P3 has subtle headroomOKLCH chroma 0.107

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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