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Lucid Hardal

#665a1a
Notes

Lucid Hardal (#665A1A) is a deep amber with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (51°, 59%, 25%) 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
#665a1a
RGB
rgb(102, 90, 26)
HSL
hsl(51, 59%, 25%)
HWB
hwb(51 10% 60%)
OKLCH
oklch(46.6% 0.083 98.4)
P3
color(display-p3 0.3921 0.3546 0.1477)
HSV
hsv(51, 75%, 40%)
LAB
lab(38.22% -3.12 36.97)
LCH
lch(38.22% 37.10 94.83)
CMYK
cmyk(0%, 12%, 75%, 60%)

Etymology

Lucid
adjective

Latin lūcidus, clear / bright — derived from lūx (light). As a color modifier, lucid implies a clear-and-readable quality where the hue is unambiguous and free of optical clutter. Sits at the crisp-and-clear end of the grid, parallel to pellucid and plain in usage.

Hardal
noun

The Turkish word for mustard — used both for the condiment and the slightly muted gold-yellow of the hardal sauces of Anatolian kitchens. The color refers to a fresh-mixed hardal paste: a saturated, slightly muted gold-yellow with the dusty finish of mustard-seed powder. The Turkish cousin of mustard.

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.

#665a1a
Original
#635811
Protanopia
#675c1e
Deuteranopia
#6e534d
Tritanopia
#585858
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
6.90:1
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
3.04:1

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
##665A1A
Display P3
Display P3
color(display-p3 0.3921 0.3546 0.1477)
P3 has subtle headroomOKLCH chroma 0.083

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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