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Welcoming Reykjavík

#40b2e7
Notes

Welcoming Reykjavík (#40B2E7) 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 (199°, 78%, 58%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#40b2e7
RGB
rgb(64, 178, 231)
HSL
hsl(199, 78%, 58%)
HWB
hwb(199 25% 9%)
OKLCH
oklch(72.2% 0.126 232.8)
P3
color(display-p3 0.3829 0.6887 0.8864)
HSV
hsv(199, 72%, 91%)
LAB
lab(68.53% -14.89 -35.73)
LCH
lch(68.53% 38.71 247.38)
CMYK
cmyk(72%, 23%, 0%, 9%)

Etymology

Welcoming
adjective

Old English wel-cuman, well-coming — present-participle of welcome. As a color modifier, welcoming implies a clear-and-inviting-and-warm quality where the hue carries the visual register of cordial-and-hospitable color-tone. Sits at the crisp-and-cheerful end of the grid, parallel to hospitable and inviting in usage.

Reykjavík
noun

The Icelandic capital — and the deep blue of Faxaflói Bay and the Bláa Lónið (Blue Lagoon) geothermal waters. Reykjavík color refers to the Blue Lagoon at midwinter: a soft, slightly cool deep blue-green with the optical complexity of silica-rich geothermal water.

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.

#40b2e7
Original
#98b0ea
Protanopia
#81a0e6
Deuteranopia
#00c0c4
Tritanopia
#9e9e9e
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
2.40:1
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
8.74:1

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
##40B2E7
Display P3
Display P3
color(display-p3 0.3829 0.6887 0.8864)
P3 has subtle headroomOKLCH chroma 0.126

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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