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Caliginous Cairngorm

#423815
Notes

Caliginous Cairngorm (#423815) is a deep amber 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 (47°, 52%, 17%) 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 blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#423815
RGB
rgb(66, 56, 21)
HSL
hsl(47, 52%, 17%)
HWB
hwb(47 8% 74%)
OKLCH
oklch(34.3% 0.053 93.5)
P3
color(display-p3 0.2524 0.2210 0.1038)
HSV
hsv(47, 68%, 26%)
LAB
lab(23.81% -0.66 23.05)
LCH
lch(23.81% 23.06 91.65)
CMYK
cmyk(0%, 15%, 68%, 74%)

Etymology

Caliginous
adjective

Latin cālīginōsus, misty / dark — derived from cālīgō (mist, gloom). As a color modifier, caliginous implies an obscured, dimmed, slightly-cool-shifted quality where the hue is veiled by darkness or atmospheric fog. Sits at the deep-and-veiled end of the grid, between murky and tenebrous in usage.

Cairngorm
noun

The smoky-yellow variety of quartz — named for the Cairngorm Mountains of the Scottish Highlands where it has been mined for traditional Scottish jewelry since the medieval period. The color refers to a polished Cairngorm cabochon: a soft, slightly muted warm gold-brown with the slight haze of smoky-quartz inclusions.

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.

#423815
Original
#3e3711
Protanopia
#413a17
Deuteranopia
#483330
Tritanopia
#383838
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
11.61:1
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
1.81:1

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
##423815
Display P3
Display P3
color(display-p3 0.2524 0.2210 0.1038)
Inside sRGBOKLCH chroma 0.053

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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