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Organized Santorini

#397d90
Notes

Organized Santorini (#397D90) is a true 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 (193°, 43%, 39%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#397d90
RGB
rgb(57, 125, 144)
HSL
hsl(193, 43%, 39%)
HWB
hwb(193 22% 44%)
OKLCH
oklch(55.4% 0.074 218.8)
P3
color(display-p3 0.2935 0.4841 0.5559)
HSV
hsv(193, 60%, 56%)
LAB
lab(48.94% -15.54 -16.75)
LCH
lch(48.94% 22.85 227.13)
CMYK
cmyk(60%, 13%, 0%, 44%)

Etymology

Organized
adjective

Greek órganon, instrument / tool — past-participle of organize. As a color modifier, organized implies a clear-and-coordinated-and-systematic quality where the hue carries the visual register of well-coordinated-and-classified arrangement. Sits at the crisp-and-orderly end of the grid, parallel to orderly and methodical in usage.

Santorini
noun

The volcanic Cycladic island — and the saturated blue of Santorini's caldera water and the cobalt-blue domes of Oia church. Santorini refers to the caldera at sunset: a saturated, slightly cool deep blue with the optical depth of volcanic-bottomed Aegean water.

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.

#397d90
Original
#717a91
Protanopia
#647090
Deuteranopia
#008383
Tritanopia
#707070
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
4.66:1
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
4.51:1

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
##397D90
Display P3
Display P3
color(display-p3 0.2935 0.4841 0.5559)
Inside sRGBOKLCH chroma 0.074

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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