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Invigorating Bittersweet

#f6883f
Notes

Invigorating Bittersweet (#F6883F) 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 (24°, 91%, 61%) 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
#f6883f
RGB
rgb(246, 136, 63)
HSL
hsl(24, 91%, 61%)
HWB
hwb(24 25% 4%)
OKLCH
oklch(73.5% 0.159 51.1)
HSV
hsv(24, 74%, 96%)
LAB
lab(67.70% 36.60 55.79)
LCH
lch(67.70% 66.73 56.73)
CMYK
cmyk(0%, 45%, 74%, 4%)

Etymology

Invigorating
adjective

Latin vigor, vigor — present-participle of invigorate, sharing root with vigil (watchfulness). As a color modifier, invigorating implies a saturated-and-life-giving-and-energizing quality where the hue increases visual-and-physical vitality. Sits at the bright-and-active end of the grid, parallel to stimulating and bracing in usage.

Bittersweet
noun

Celastrus scandens, the North American climbing vine whose autumn fruits split to reveal orange-red arils against yellow capsules. The color refers to ripe bittersweet berries in October: a saturated, slightly red orange with the matte finish of fall berry skin. Warmer than rust, drier than tangerine.

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.

#f6883f
Original
#a89636
Protanopia
#c2af3e
Deuteranopia
#ff7179
Tritanopia
#9a9a9a
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
2.47:1
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
8.51:1

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