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Jewelamberdeep

Rich Bronze Crystal

#645b0a
Notes

Rich Bronze Crystal (#645B0A) is a deep amber 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 (54°, 82%, 22%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#645b0a
RGB
rgb(100, 91, 10)
HSL
hsl(54, 82%, 22%)
HWB
hwb(54 4% 61%)
OKLCH
oklch(46.6% 0.094 102.4)
HSV
hsv(54, 90%, 39%)
LAB
lab(38.22% -5.39 42.71)
LCH
lch(38.22% 43.05 97.19)
CMYK
cmyk(0%, 9%, 90%, 61%)

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

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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.

#645b0a
Original
#655800
Protanopia
#675c12
Deuteranopia
#6c544d
Tritanopia
#575757
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

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Canvas