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Lustrous Ochre

#f3a340
Notes

Lustrous Ochre (#F3A340) is a true orange with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (33°, 88%, 60%) places it in the highly saturated band at a mid 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 azure. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#f3a340
RGB
rgb(243, 163, 64)
HSL
hsl(33, 88%, 60%)
HWB
hwb(33 25% 5%)
OKLCH
oklch(77.8% 0.145 67.9)
HSV
hsv(33, 74%, 95%)
LAB
lab(73.30% 21.35 60.90)
LCH
lch(73.30% 64.54 70.68)
CMYK
cmyk(0%, 33%, 74%, 5%)

Etymology

Lustrous
adjective

From the Latin lustrare, to illuminate — used as a color word since the seventeenth century for hues with the slight specular shine of polished metal or silk. Lustrous green, lustrous gold: the implication is moderate-to-high saturation combined with surface reflectivity. Sits at the bright-and-glossy corner alongside gleaming.

Ochre
noun

Iron-rich earth pigment — humanity's oldest known coloring material, used in burial ornament 100,000 years ago. Yellow ochre is the unfired earth (limonite); red ochre is the same mineral fired or weathered to hematite. The color refers to yellow ochre as ground for Renaissance fresco: a warm, slightly muted earth-yellow with the matte chalk finish of mineral pigment. Cave paintings in Lascaux and Altamira; the unbroken thread of Western image-making.

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.

#f3a340
Original
#bda933
Protanopia
#d0bb42
Deuteranopia
#ff908f
Tritanopia
#adadad
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).
Failon White
2.07:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
10.12:1

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