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Cool Maya

#3999d3
Notes

Cool Maya (#3999D3) is a true azure 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 (203°, 64%, 53%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#3999d3
RGB
rgb(57, 153, 211)
HSL
hsl(203, 64%, 53%)
HWB
hwb(203 22% 17%)
OKLCH
oklch(65.3% 0.124 239.5)
P3
color(display-p3 0.3322 0.5920 0.8077)
HSV
hsv(203, 73%, 83%)
LAB
lab(60.21% -8.83 -37.68)
LCH
lch(60.21% 38.70 256.81)
CMYK
cmyk(73%, 27%, 0%, 17%)

Etymology

Cool
adjective

Old English cōl, of low temperature — used as a color modifier as the complement to warm. Cool gray, cool blue: the optical impression of a slight blue-green shift, even within otherwise warm or neutral hues. Sits across the crisp, hushed, pale, and neutral buckets.

Maya
noun

Maya Blue — a saturated deep-blue pigment developed by the Mayan civilization from indigo dye and palygorskite clay, applied to murals at Bonampak and Cacaxtla. The combination produces unusual long-term lightfastness. The color refers to a freshly mixed Maya Blue pigment: a saturated, slightly cool deep blue with the matte finish of organic-and-clay pigment.

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.

#3999d3
Original
#7e99d6
Protanopia
#698bd2
Deuteranopia
#00a8ad
Tritanopia
#898989
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
3.15:1
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
6.67:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##3999D3
Display P3
Display P3
color(display-p3 0.3322 0.5920 0.8077)
P3 has subtle headroomOKLCH chroma 0.124

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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