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Cool Baldr Lagoon

#286683
Notes

Cool Baldr Lagoon (#286683) is a deep cyan with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (199°, 53%, 34%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#286683
RGB
rgb(40, 102, 131)
HSL
hsl(199, 53%, 34%)
HWB
hwb(199 16% 49%)
OKLCH
oklch(48.3% 0.078 231.9)
P3
color(display-p3 0.2239 0.3947 0.5028)
HSV
hsv(199, 69%, 51%)
LAB
lab(40.56% -9.96 -21.93)
LCH
lch(40.56% 24.08 245.57)
CMYK
cmyk(69%, 22%, 0%, 49%)

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.

Baldr
modifier

Old Norse Baldr, fair-and-shining-god-of-light. As a color modifier, baldr implies a fair-and-shining-god-of-light quality, the visual register of Norse-Baldr-and-Breidablik-hall hand-fair-and-shining-god-of-light Norse-Baldr-and-Breidablik-hall-and-mistletoe-fall baldr-and-fair-and-shining-god-of-light surfaces under Norse-Baldr-and-Breidablik-hall-and-mistletoe-fall Asgard-pantheon-and-Hel-descent fair-radiance-light. Sits at the modifier-and-myth end of the grid, parallel to odin and freya 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.

#286683
Original
#586584
Protanopia
#4b5c83
Deuteranopia
#006e70
Tritanopia
#5b5b5b
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).
AAon White
6.33:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.32:1

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
##286683
Display P3
Display P3
color(display-p3 0.2239 0.3947 0.5028)
Inside sRGBOKLCH chroma 0.078

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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