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Antiseptic Eros Kingfisher

#1f9fb7
Notes

Antiseptic Eros Kingfisher (#1F9FB7) is a true cyan with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (189°, 71%, 42%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1f9fb7
RGB
rgb(31, 159, 183)
HSL
hsl(189, 71%, 42%)
HWB
hwb(189 12% 28%)
OKLCH
oklch(64.8% 0.108 214.4)
P3
color(display-p3 0.2992 0.6144 0.7059)
HSV
hsv(189, 83%, 72%)
LAB
lab(60.34% -24.37 -21.81)
LCH
lch(60.34% 32.71 221.82)
CMYK
cmyk(83%, 13%, 0%, 28%)

Etymology

Antiseptic
adjective

Greek anti- (against) plus sēptikós (putrefying) — adjectival suffix -ic. As a color modifier, antiseptic implies a clear-and-disinfected-and-clinical quality, the crisp color of medical-laboratory and operating-theater hand-scrub-and-sanitizer surfaces. Sits at the crisp-and-clean end of the grid, parallel to sterile and sanitary in usage.

Eros
modifier

Greek Ἔρως, god-of-love-and-desire. As a color modifier, eros implies a winged-love-and-arrow-of-desire quality, the visual register of Praxiteles-Eros-and-Roman-Cupid hand-winged-love-and-arrow-of-desire Praxiteles-Eros-and-Roman-Cupid-and-Pompeii-fresco eros-and-winged-love-and-arrow-of-desire surfaces under Praxiteles-Eros-and-Roman-Cupid-and-Pompeii-fresco Hellenistic-and-Roman-Pompeii rose-and-myrtle-light. Sits at the modifier-and-myth end of the grid, parallel to zeus and hera in usage.

Kingfisher
noun

The family Alcedinidae — particularly Alcedo atthis, the European common kingfisher whose iridescent turquoise-blue plumage gives the color its name. The color refers to a male European kingfisher's wing: a saturated, slightly cool deep blue-green with the iridescent satin 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.

#1f9fb7
Original
#8e9ab8
Protanopia
#7a8bb7
Deuteranopia
#00a8a6
Tritanopia
#868686
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
3.13:1
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
6.70:1

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
##1F9FB7
Display P3
Display P3
color(display-p3 0.2992 0.6144 0.7059)
P3 has subtle headroomOKLCH chroma 0.108

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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