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Plotted Reykjavík

#175c7e
Notes

Plotted Reykjavík (#175C7E) is a deep azure 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 (200°, 69%, 29%) 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
#175c7e
RGB
rgb(23, 92, 126)
HSL
hsl(200, 69%, 29%)
HWB
hwb(200 9% 51%)
OKLCH
oklch(45.0% 0.086 235.4)
P3
color(display-p3 0.1758 0.3554 0.4821)
HSV
hsv(200, 82%, 49%)
LAB
lab(36.63% -8.25 -25.02)
LCH
lch(36.63% 26.35 251.74)
CMYK
cmyk(82%, 27%, 0%, 51%)

Etymology

Plotted
adjective

Old English plot, small piece of ground — past-participle of plot. As a color modifier, plotted implies a clear-and-coordinate-mapped quality, the crisp color of Cartesian-and-graph-paper coordinate-plotted scientific-and-engineering data-visualization plot-line. Sits at the crisp-and-mapped end of the grid, parallel to mapped and surveyed in usage.

Reykjavík
noun

The Icelandic capital — and the deep blue of Faxaflói Bay and the Bláa Lónið (Blue Lagoon) geothermal waters. Reykjavík color refers to the Blue Lagoon at midwinter: a soft, slightly cool deep blue-green with the optical complexity of silica-rich geothermal 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.

#175c7e
Original
#4b5c80
Protanopia
#3e527d
Deuteranopia
#006568
Tritanopia
#505050
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).
AAAon White
7.32:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.87:1

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
##175C7E
Display P3
Display P3
color(display-p3 0.1758 0.3554 0.4821)
P3 has subtle headroomOKLCH chroma 0.086

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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