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Austere Loch

#334a53
Notes

Austere Loch (#334A53) 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 (197°, 24%, 26%) places it in the muted 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
#334a53
RGB
rgb(51, 74, 83)
HSL
hsl(197, 24%, 26%)
HWB
hwb(197 20% 67%)
OKLCH
oklch(39.4% 0.032 224.2)
P3
color(display-p3 0.2191 0.2877 0.3214)
HSV
hsv(197, 39%, 33%)
LAB
lab(29.97% -6.25 -8.18)
LCH
lch(29.97% 10.29 232.61)
CMYK
cmyk(39%, 11%, 0%, 67%)

Etymology

Austere
adjective

Latin austērus, harsh / bitter. As a color modifier, austere implies a deep-and-stripped-down formality, the dark plain-textile color of Bauhaus and Cistercian monastic interior aesthetic. Sits at the deep-and-formal end of the grid, parallel to stern and severe in tone.

Loch
noun

The Scottish word for lake (from Gaelic loch) — particularly the saturated deep blue of Loch Ness, Loch Lomond, and the highland lochs of the western Highlands. Loch color refers to Loch Lomond at midday: a saturated, slightly cool deep blue with the optical depth of cold-water highland lake.

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.

#334a53
Original
#454954
Protanopia
#404553
Deuteranopia
#284d4d
Tritanopia
#464646
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
9.35:1
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
2.25:1

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
##334A53
Display P3
Display P3
color(display-p3 0.2191 0.2877 0.3214)
Inside sRGBOKLCH chroma 0.032

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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