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Glowy Malbec

#ef5738
Notes

Glowy Malbec (#EF5738) is a true red 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 (10°, 85%, 58%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#ef5738
RGB
rgb(239, 87, 56)
HSL
hsl(10, 85%, 58%)
HWB
hwb(10 22% 6%)
OKLCH
oklch(65.5% 0.193 33.4)
HSV
hsv(10, 77%, 94%)
LAB
lab(57.52% 56.93 48.34)
LCH
lch(57.52% 74.69 40.33)
CMYK
cmyk(0%, 64%, 77%, 6%)

Etymology

Glowy
adjective

Old English glōwan, to glow — adjectival suffix -y. As a color modifier, glowy implies a saturated-and-soft-emitting-and-warm quality, the bright color of fireside-and-candle-lit interior atmospheric-warmth surface emission. Sits at the bright-and-warm end of the grid, parallel to glowing and luminous in usage.

Malbec
noun

A red-wine grape originally from Cahors in southwest France, now most associated with Argentine Mendoza wine regions. The color refers to a young Argentine Malbec: a deep, slightly cool dark red with the high tannin opacity of high-altitude grape wine. Deeper than Tempranillo, cooler than Rioja.

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.

#ef5738
Original
#827533
Protanopia
#a89732
Deuteranopia
#ff2e51
Tritanopia
#757575
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).
AA Largeon White
3.45:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.09:1

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