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Salubrious Frieze Lagoon

#4d99b7
Notes

Salubrious Frieze Lagoon (#4D99B7) is a true cyan 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 (197°, 42%, 51%) 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
#4d99b7
RGB
rgb(77, 153, 183)
HSL
hsl(197, 42%, 51%)
HWB
hwb(197 30% 28%)
OKLCH
oklch(64.6% 0.087 226.4)
P3
color(display-p3 0.3774 0.5930 0.7052)
HSV
hsv(197, 58%, 72%)
LAB
lab(59.69% -14.68 -22.71)
LCH
lch(59.69% 27.04 237.12)
CMYK
cmyk(58%, 16%, 0%, 28%)

Etymology

Salubrious
adjective

Latin salūbris, healthful — adjectival suffix -ous. As a color modifier, salubrious implies a clear-and-healthful-and-fresh quality, the crisp color of Alpine-and-Sea-air health-resort and Mediterranean-coast spa-and-thalassotherapy outdoor environment. Sits at the crisp-and-wholesome end of the grid, parallel to healthful and bracing in usage.

Frieze
modifier

Old French frise, band-of-decoration. As a color modifier, frieze implies a horizontal-decorative-band quality, the visual register of Greek-Parthenon-and-Roman-Imperial-frieze hand-carved Doric-and-Ionic-and-Corinthian classical-decorative-frieze architectural surfaces under classical-frieze decorative-band light. Sits at the modifier-and-architecture end of the grid, parallel to eave and plinth 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.

#4d99b7
Original
#8996b9
Protanopia
#7a8bb7
Deuteranopia
#00a2a3
Tritanopia
#8b8b8b
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
3.20:1
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
6.56:1

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
##4D99B7
Display P3
Display P3
color(display-p3 0.3774 0.5930 0.7052)
P3 has subtle headroomOKLCH chroma 0.087

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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