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Softened Bluebird

#3f5d5e
Notes

Softened Bluebird (#3F5D5E) is a deep cyan with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (182°, 20%, 31%) places it in the muted band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#3f5d5e
RGB
rgb(63, 93, 94)
HSL
hsl(182, 20%, 31%)
HWB
hwb(182 25% 63%)
OKLCH
oklch(45.5% 0.035 198.6)
P3
color(display-p3 0.2724 0.3615 0.3667)
HSV
hsv(182, 33%, 37%)
LAB
lab(37.29% -10.71 -4.12)
LCH
lch(37.29% 11.47 201.04)
CMYK
cmyk(33%, 1%, 0%, 63%)

Etymology

Softened
adjective

Old English sōfte, soft — past-participle of soften. As a color modifier, softened implies a hushed-and-modulated-and-eased quality where the hue carries the visual register of edge-eased-and-tone-modulated softened-color treatment. Sits at the hushed-and-soft end of the grid, parallel to muffled and gentle in usage.

Bluebird
noun

The genus Sialia — North American bluebirds — particularly S. sialis (Eastern bluebird), whose males display saturated cobalt-blue plumage with rust-red breasts. The color refers to a male Eastern bluebird in breeding plumage: a saturated, slightly cool deep blue with the matte finish of structurally colored feathers.

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.

#3f5d5e
Original
#595a5e
Protanopia
#53565e
Deuteranopia
#345f5d
Tritanopia
#575757
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).
AAAon White
7.15:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.94:1

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
##3F5D5E
Display P3
Display P3
color(display-p3 0.2724 0.3615 0.3667)
Inside sRGBOKLCH chroma 0.035

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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