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Glowy Atitlán

#a187eb
Notes

Glowy Atitlán (#A187EB) is a soft indigo with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (256°, 71%, 73%) places it in the balanced band at a light lightness. It works as a background wash, large-area fill, or soft illustration tone. Add a darker ink of the same hue when you need type over it. For a confident two-color system, pair it with its complementary lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a187eb
RGB
rgb(161, 135, 235)
HSL
hsl(256, 71%, 73%)
HWB
hwb(256 53% 8%)
OKLCH
oklch(68.9% 0.145 294.2)
HSV
hsv(256, 43%, 92%)
LAB
lab(62.43% 31.44 -47.13)
LCH
lch(62.43% 56.66 303.71)
CMYK
cmyk(31%, 43%, 0%, 8%)

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.

Atitlán
noun

Mayan-named volcanic crater lake in Guatemala's western highlands, surrounded by Tolimán, San Pedro, and Atitlán volcanoes. The lake's depth and volcanic basement give it an unusual deep blue-violet at certain light angles. Atitlán color refers to Lake Atitlán surface at crepuscule in clear weather: a saturated, slightly cool deep blue-violet with the optical complexity of deep-water Rayleigh-scattered indigo light.

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.

#a187eb
Original
#6898ef
Protanopia
#6c95e9
Deuteranopia
#9099ae
Tritanopia
#949494
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
2.92:1
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
7.18:1

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