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Cool Chive Lagoon

#049a97
Notes

Cool Chive Lagoon (#049A97) is a deep cyan 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 (179°, 95%, 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#049a97
RGB
rgb(4, 154, 151)
HSL
hsl(179, 95%, 31%)
HWB
hwb(179 2% 40%)
OKLCH
oklch(62.0% 0.106 192.3)
P3
color(display-p3 0.2680 0.5948 0.5884)
HSV
hsv(179, 97%, 60%)
LAB
lab(57.43% -33.77 -8.09)
LCH
lch(57.43% 34.73 193.47)
CMYK
cmyk(97%, 0%, 2%, 40%)

Etymology

Cool
adjective

Old English cōl, of low temperature — used as a color modifier as the complement to warm. Cool gray, cool blue: the optical impression of a slight blue-green shift, even within otherwise warm or neutral hues. Sits across the crisp, hushed, pale, and neutral buckets.

Chive
modifier

Latin cepa, small-onion-grass-herb. As a color modifier, chive implies a slim-grass-onion-and-spring-fresh quality, the visual register of English-cottage-garden-and-French-bistro-chive hand-slim-grass-onion-and-spring-fresh English-cottage-garden-and-French-bistro-chive-and-fines-herbes chive-and-slim-grass-onion surfaces under English-cottage-garden-and-French-bistro-chive-and-fines-herbes Sussex-cottage-and-Lyon-bouchon spring-onion-light. Sits at the modifier-and-flavor end of the grid, parallel to dill and chervil 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.

#049a97
Original
#909197
Protanopia
#7e8498
Deuteranopia
#009f99
Tritanopia
#7a7a7a
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
3.46:1
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
6.07:1

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
##049A97
Display P3
Display P3
color(display-p3 0.2680 0.5948 0.5884)
P3 has subtle headroomOKLCH chroma 0.106

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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