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Pleasant Dawn

#5b99da
Notes

Pleasant Dawn (#5B99DA) 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 (211°, 63%, 61%) 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
#5b99da
RGB
rgb(91, 153, 218)
HSL
hsl(211, 63%, 61%)
HWB
hwb(211 36% 15%)
OKLCH
oklch(66.9% 0.117 251.0)
P3
color(display-p3 0.4136 0.5939 0.8341)
HSV
hsv(211, 58%, 85%)
LAB
lab(61.71% -0.87 -39.14)
LCH
lch(61.71% 39.15 268.73)
CMYK
cmyk(58%, 30%, 0%, 15%)

Etymology

Pleasant
adjective

From the French plaisant, pleasing — used as a color modifier since the fifteenth century for hues that read as agreeable, the kind of color that wears well over a long viewing without becoming demanding or fatiguing. Pleasant green, pleasant rose: moderate saturation combined with optical comfort. Sits at the crisp-bucket alongside easy and calm.

Dawn
noun

The transitional sky color in the half-hour before sunrise — when the sun is below the horizon but its light scatters off the upper atmosphere. The color refers to the eastern sky at civil twilight on a clear summer morning: a soft, slightly violet-shifted blue with a very slight orange wash near the horizon. Cooler than dawn-itself's pink moments, warmer than midnight, with the daily weight of a moment that lasts only minutes.

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.

#5b99da
Original
#7e9cdd
Protanopia
#6d8fd9
Deuteranopia
#00a8b0
Tritanopia
#919191
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
2.99:1
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
7.01:1

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
##5B99DA
Display P3
Display P3
color(display-p3 0.4136 0.5939 0.8341)
P3 has subtle headroomOKLCH chroma 0.117

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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