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Welcoming Reykjavík

#64c2c1
Notes

Welcoming Reykjavík (#64C2C1) is a true cyan 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 (179°, 44%, 58%) 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
#64c2c1
RGB
rgb(100, 194, 193)
HSL
hsl(179, 44%, 58%)
HWB
hwb(179 39% 24%)
OKLCH
oklch(75.7% 0.089 194.5)
P3
color(display-p3 0.4852 0.7521 0.7527)
HSV
hsv(179, 48%, 76%)
LAB
lab(72.98% -28.03 -8.10)
LCH
lch(72.98% 29.18 196.12)
CMYK
cmyk(48%, 0%, 1%, 24%)

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.

#64c2c1
Original
#b8bac1
Protanopia
#a8aec2
Deuteranopia
#2ac7c1
Tritanopia
#aeaeae
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
2.09:1
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
10.03:1

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
##64C2C1
Display P3
Display P3
color(display-p3 0.4852 0.7521 0.7527)
P3 has subtle headroomOKLCH chroma 0.089

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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