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Aglow Ember

#f3860f
Notes

Aglow Ember (#F3860F) 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 (31°, 90%, 51%) 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
#f3860f
RGB
rgb(243, 134, 15)
HSL
hsl(31, 90%, 51%)
HWB
hwb(31 6% 5%)
OKLCH
oklch(72.5% 0.171 57.9)
HSV
hsv(31, 94%, 95%)
LAB
lab(66.63% 35.19 70.71)
LCH
lch(66.63% 78.99 63.54)
CMYK
cmyk(0%, 45%, 94%, 5%)

Etymology

Aglow
adjective

Old English on-glōwan, on-glow — sharing root with glow and gleam. As a color modifier, aglow implies a saturated-and-lit-from-within quality, the bright color of fireplace-and-jack-o-lantern interior-glow-lit warm-light emission against ambient darkness. Sits at the bright-and-warm end of the grid, parallel to glowing and aflame in usage.

Ember
noun

An ember is a piece of glowing fuel after the flame has gone — the slow-cooling carbon at the bottom of a fire, between black and red on its way back to ash. The color is exactly that transitional moment: a warm, slightly luminous orange with the suggestion of red beneath, hotter than rust and quieter than flame. Old English æmerge, cognate with the German Ammer.

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.

#f3860f
Original
#a79300
Protanopia
#c1ac0e
Deuteranopia
#ff6d73
Tritanopia
#959595
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
2.55:1
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
8.23:1

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