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Orderly Sagittarius Lagoon

#42c5f3
Notes

Orderly Sagittarius Lagoon (#42C5F3) is a true cyan with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (196°, 88%, 61%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#42c5f3
RGB
rgb(66, 197, 243)
HSL
hsl(196, 88%, 61%)
HWB
hwb(196 26% 5%)
OKLCH
oklch(77.2% 0.128 226.0)
P3
color(display-p3 0.4154 0.7621 0.9345)
HSV
hsv(196, 73%, 95%)
LAB
lab(74.54% -20.70 -32.92)
LCH
lch(74.54% 38.89 237.84)
CMYK
cmyk(73%, 19%, 0%, 5%)

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.

Sagittarius
modifier

Latin sagittarius, archer-of-the-zodiac. As a color modifier, sagittarius implies a centaur-archer-and-fire-sign-and-Jupiter-ruled-mutable-fire quality, the visual register of Hellenic-Sagittarius-and-Chiron-centaur-archer hand-centaur-archer-and-fire-sign-and-Jupiter-ruled-mutable-fire Hellenic-Sagittarius-and-Chiron-centaur-archer-and-galactic-center sagittarius-and-centaur-archer-and-fire-sign surfaces under Hellenic-Sagittarius-and-Chiron-centaur-archer-and-galactic-center late-autumn-and-November-and-December mutable-fire-sign-light. Sits at the modifier-and-zodiac end of the grid, parallel to scorpio and capricorn in usage.

Lagoon
noun

A shallow body of saltwater partially or fully enclosed by a barrier — coral atoll lagoons in the Pacific, Venice's Laguna Veneta, the Florida Keys' backcountry. The color refers to the average reflectance of a calm tropical lagoon at midday: a saturated, slightly muted blue-green with the optical clarity of shallow water over white sand. Brighter than reef, cooler than aquamarine, with the postcard weight of a Pacific atoll seen from above.

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.

#42c5f3
Original
#acc1f5
Protanopia
#94b0f2
Deuteranopia
#00d2d4
Tritanopia
#acacac
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
2.00:1
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
10.51:1

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
##42C5F3
Display P3
Display P3
color(display-p3 0.4154 0.7621 0.9345)
P3 has subtle headroomOKLCH chroma 0.128

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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