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Truthful Indigobird

#3fcef1
Notes

Truthful Indigobird (#3FCEF1) is a true cyan 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 (192°, 86%, 60%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#3fcef1
RGB
rgb(63, 206, 241)
HSL
hsl(192, 86%, 60%)
HWB
hwb(192 25% 5%)
OKLCH
oklch(79.1% 0.127 218.2)
P3
color(display-p3 0.4242 0.7968 0.9292)
HSV
hsv(192, 74%, 95%)
LAB
lab(77.01% -26.23 -28.06)
LCH
lch(77.01% 38.41 226.93)
CMYK
cmyk(74%, 15%, 0%, 5%)

Etymology

Truthful
adjective

Old English trēowth, truth — adjectival suffix -ful. As a color modifier, truthful implies a clear-and-honest-and-direct quality where the hue carries the visual register of accurate-and-faithful-representation declaration. Sits at the crisp-and-honest end of the grid, parallel to candid and honest in usage.

Indigobird
noun

The genus Vidua — African parasitic finches whose males display saturated indigo-blue plumage in breeding season. The color refers to a male V. chalybeata (village indigobird) in breeding plumage: a saturated, slightly cool deep blue-violet with the iridescent satin finish of structural feather color.

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.

#3fcef1
Original
#b8c8f3
Protanopia
#9fb7f1
Deuteranopia
#00dad9
Tritanopia
#b2b2b2
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
1.86:1
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
11.31:1

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
##3FCEF1
Display P3
Display P3
color(display-p3 0.4242 0.7968 0.9292)
P3 has subtle headroomOKLCH chroma 0.127

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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